{"title":"BMW Tunes","description":"\u003cp\u003eRK-Tunes has been calibrating BMW DMEs since 2009 — E36 through G-series, M cars, swaps and forced induction.\u003c\/p\u003e","products":[{"product_id":"performance-tune-for-e36-3-series-1993-1995","title":"Performance tune for OBD1 E36 3-series (1993-1995)","description":"\u003cdiv style=\"text-align: center;\"\u003e\n\u003cstrong\u003eE36 TUNE \u003cbr\u003e \u003cbr\u003e\u003c\/strong\u003e\u003cspan\u003eThis is our tried and tested tune for all OBDI M50tu, M52,S50, S52 engines. These tunes were designed on a Dynojet dyno and tested in the real world! OBD1 engines receive a base map on a chip. \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eKEY FEATURES: \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Top speed governor removed \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Increased RPM rev limit \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ VANOS cam timing adjustment \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Improved throttle response \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Multiple fuel octane rating settings\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e⦁ Burble **Must be Catless**\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cspan\u003ePERFORMANCE SPECS: \u003cbr\u003e8-20+WHP \u003cbr\u003e8-20+ FT\/LBS TQ \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eIn the modification box, please specify all current vehicle modifications and desired options. \u003c\/span\u003e\n\u003c\/div\u003e","brand":"RK-Tunes","offers":[{"title":"M50tu","offer_id":32392747581545,"sku":"575757567","price":399.99,"currency_code":"USD","in_stock":true},{"title":"M52","offer_id":32392747614313,"sku":"55657786786","price":399.99,"currency_code":"USD","in_stock":true},{"title":"S50","offer_id":32392747647081,"sku":"786876898969867656","price":399.99,"currency_code":"USD","in_stock":true},{"title":"S52","offer_id":32392747679849,"sku":"465487568970854","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1159\/4362\/files\/e36_a0bf0109-e26a-4f88-a747-a0248d6fe0c7.png?v=1758739439"},{"product_id":"performance-tune-for-bmw-m-roadster-e36-7-8-1998-2000-z3-roadster-coupe-z3m-roadster-m-coupe","title":"Performance tune for E36\/7\/8 Z3—(1996–2002) Z3 Roadster\/ Coupe\/Z3 M Roadster\/ M Coupe","description":"\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eE36\/7\/8 Z3 Tune\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eThis is our tried and tested tune for all Z3's with an M50, S50, M52, S52, M54 engine. These tunes were designed on a Dynojet dyno and tested in the real world! All OBD2 tune packages come with an OBD to USB cable and software to read and write your DME\/ECU. A Windows computer is required to utilize the RK-Tunes flash software.\u003c\/span\u003e Check FAQ section for windows device recommendations.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003eKEY FEATURES: \u003cbr\u003e⦁ Top speed governer removed \u003cbr\u003e⦁ Increased RPM rev limit \u003cbr\u003e⦁ VANOS cam timing adjustment \u003cbr\u003e⦁ Improved throttle respone \u003cbr\u003e⦁ Multiple fuel octane rating settings \u003cbr\u003e\u003cbr\u003ePERFORMANCE SPECS: \u003cbr\u003e8-20+ WHP \u003cbr\u003e8-20+ FT\/LBS TQ \u003cbr\u003e\u003cbr\u003eIn the modfication box, please specify all current vehicle modifications and desired options\u003c\/span\u003e\u003c\/p\u003e","brand":"RK-Tunes","offers":[{"title":"Default Title","offer_id":30860990382185,"sku":"253234","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1159\/4362\/files\/ChatGPTImageSep24_2025_03_17_29PM_5af9ae9d-5274-471b-bc71-b0a531209178.png?v=1758741699"},{"product_id":"performance-tune-for-bmw-m-roadster-e36-7-8-2000-2002-z3-roadster-coupe-z3m-roadster-m-coupe","title":"Performance tune for E36\/7\/8 Z3M — (2000–2002) Z3 M Roadster\/M Coupe","description":"\u003cp\u003e\u003cstrong\u003eZ3M TUNE\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThis is our tried and tested tune for a Z3M with an S54. These tunes were designed on a Dynojet dyno and tested in the real world! We offer both MAF based and ALPHA-N tunes. Our ALPHA-N tune has an additional 15% increase in power over the MAF based tune. The ALPHA-N tune requires the MAF to be deleted, and the installation of a new Air Intake Temperature Sensor included in your purchase. Please select whether you would like a MAF or ALPHA-N. All tune packages come with an OBD to USB cable and software to read and write your DME\/ECU. A Windows computer is required to utilize the RK-Tunes flash software. \u003c\/span\u003eCheck FAQ section for windows device recommendations.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan\u003eKEY FEATURES: \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Top speed governor removed \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Increased RPM rev limit \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ VANOS cam timing adjustment \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Improved throttle response \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Ignition timing enhancements \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Air\/Fuel Ratio enhancements \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eOPTIONS: \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Fuel - Selectable fuel octane rating (91, 93) \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Burble - Emits flame and backfire when lifting off throttle. Only suggested for catless exhaust systems. \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Rear O2 Sensor Delete - If you are running aftermarket headers please select O2 Sensor delete. We will remove all coding associated with rear O2 sensors \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Cold Start Fix - All S54's have a cold start calibration to heat up the catalytic converters. If you're unhappy with the way your S54 idles\/runs while cold, select this option and we will adjust the cold start in your tune. Highly advised if you are running a catless exhaust system. \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ SAP (Secondary Air Pump) Delete - If you have deleted your Secondary Air Pump, please select this option and we will remove the coding from the DME\/ECU to avoid a CEL. \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003ePERFORMANCE SPECS BASED ON MODIFICATIONS: \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eMAF BASED\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e10-30+ WHP \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e10-30+ FT\/LBS TQ \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eALPHA-N\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e15-35+ WHP\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e15-35+ FT\/LBS TQ\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eIn the modification box, please specify all current vehicle modifications and desired options.\u003c\/span\u003e\u003c\/p\u003e","brand":"RK-Tunes","offers":[{"title":"MAF Based","offer_id":28565860033,"sku":"534","price":599.99,"currency_code":"USD","in_stock":true},{"title":"ALPHA-N","offer_id":28565878657,"sku":"3254","price":899.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1159\/4362\/files\/ChatGPTImageSep24_2025_03_17_29PM.png?v=1758741740"},{"product_id":"performance-tune-for-e34-5-series-1993-1995","title":"Performance tune for E34 5-Series (1993-1995)","description":"\u003cp\u003e\u003cstrong\u003eE34 5 Series TUNE\u003c\/strong\u003e \u003cbr\u003e\u003cbr\u003eThis is our tried and tested tune for all OBDI 525i E34 5 Series with the M50tu motor. These tunes were designed on a Dynojet dyno and tested in the real world! \u003cbr\u003e\u003cbr\u003eKEY FEATURES: \u003cbr\u003e⦁ Top speed governor removed \u003cbr\u003e⦁ Increased RPM rev limit \u003cbr\u003e⦁ VANOS cam timing adjustment \u003cbr\u003e⦁ Improved throttle response \u003cbr\u003e⦁ Multiple fuel octane rating settings \u003cbr\u003e\u003cbr\u003ePERFORMANCE SPECS: 8-20+ WHP 8-20+ FT\/LBS TQ \u003cbr\u003e\u003cbr\u003eIn the modification box, please specify all current vehicle modifications and desired options.\u003c\/p\u003e","brand":"RK-Tunes","offers":[{"title":"Default Title","offer_id":28568735041,"sku":"1234","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1159\/4362\/files\/3434.png?v=1758745986"},{"product_id":"performance-tune-for-e39-5-series-2001-2003","title":"Performance tune for E39 5-Series (1996-2003)","description":"\u003cp\u003e\u003cspan\u003e\u003cspan\u003e\u003cstrong\u003eE39 5 Series TUNE\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003eThis is our tried and tested tune for an E39 5 Series with an M52\/M54 engine. These tunes were designed on a Dynojet dyno and tested in the real world! All OBD2 tune packages come with an OBD to USB cable and software to read and write your DME\/ECU. A Windows computer is required to utilize the RK-Tunes flash software. \u003c\/span\u003e\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eCheck FAQ section for windows device recommendation. \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eKEY FEATURES: \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Top speed governor removed \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Increased RPM rev limit \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ VANOS cam timing adjustment \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Improved throttle response \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Multiple fuel octane rating settings \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003ePERFORMANCE SPECS: \u003cbr\u003e8-20+ WHP \u003cbr\u003e8-20+ FT\/LBS TQ \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eIn the modification box, please specify all current vehicle modifications and desired options.\u003c\/span\u003e\u003c\/p\u003e","brand":"RK-Tunes","offers":[{"title":"Default Title","offer_id":30861083017321,"sku":"465568","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1159\/4362\/files\/ChatGPTImageSep24_2025_04_26_15PM39_36df141c-96d2-416f-89c0-669c0f3ca832.png?v=1758745935"},{"product_id":"performance-tune-for-e39-m5-2000-2003","title":"Performance tune for E39 M5 (2000-2003)","description":"\u003cp\u003e\u003cstrong\u003eE39 M5 Tune\u003c\/strong\u003e \u003cbr\u003e\u003cbr\u003eThis is our tried and tested tune for an E39 M5. These tunes were designed on a Dynojet dyno and tested in the real world! All tune packages come with an OBD to USB cable and software to read and write your DME\/ECU. A Windows computer is required to utilize the RK-Tunes flash software. \u003cspan\u003eC\u003c\/span\u003e\u003cspan\u003eheck FAQ section for windows device recommendations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eKEY FEATURES: \u003cbr\u003e⦁ Top speed governor removed \u003cbr\u003e⦁ Increased RPM rev limit \u003cbr\u003e⦁ VANOS cam timing adjustment \u003cbr\u003e⦁ Improved throttle response \u003cbr\u003e⦁ Ignition timing enhancements \u003cbr\u003e⦁ Air\/Fuel Ratio enhancements \u003cbr\u003e\u003cbr\u003eOPTIONS: \u003cbr\u003e- Fuel - Selectable fuel octane rating (91, 93) \u003c\/p\u003e\n\u003cp\u003e- Burble - can adjust backfires and pops from exhaust to your choice\u003cbr\u003e\u003cbr\u003e\u003cbr\u003ePERFORMANCE SPECS BASED ON MODIFICATIONS: \u003cbr\u003e10-20+ WHP \u003cbr\u003e5-10+ FT\/LBS TQ \u003cbr\u003eIn the modification box, please specify all current vehicle modifications and desired options.\u003c\/p\u003e","brand":"RK-Tunes","offers":[{"title":"MAF based","offer_id":40576016318569,"sku":"342523","price":599.99,"currency_code":"USD","in_stock":true},{"title":"Alpha-N","offer_id":40576016351337,"sku":"342524","price":899.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1159\/4362\/files\/ChatGPTImageSep24_2025_04_26_15PM39.png?v=1758745856"},{"product_id":"s54-swap-tune-e46-m3-motor-in-a-different-chassis","title":"S54 Swap tune (E46 M3 motor in a different chassis)","description":"\u003cp\u003e­­\u003cstrong\u003eS54 Swap tune for an E46 M3 motor with a factory Mss54 \/ mss54HP dme.\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis turns the factory E46 M3 Engine DME into a \"Stand alone\" DME. It will now control a S54 engine in any chassis.\u003cbr\u003e\u003cbr\u003eThis is our tried and tested tune for an E46 M3 motor ( S54) to run in a different chassis or for a full race car. No abs, No Can system, no emissions, etc. These tunes were designed on a Dynojet dyno and tested in the real world! We offer both MAF based and ALPHA-N tunes. Our ALPHA-N tune has an additional 15% increase in power over the MAF based tune. The ALPHA-N tune requires the MAF to be deleted, and the installation of a new Air Intake Temperature Sensor included in your purchase. Please select whether you would like a MAF or ALPHA-N. All tune packages come with an OBD to USB cable and software to read and write your DME\/ECU. A Windows computer is required to utilize the RK-Tunes flash software. Check FAQ section for windows device recommendation. \u003cbr\u003e\u003cbr\u003eKEY FEATURES: \u003cbr\u003e⦁ Allows your factory Mss54 \/ Mss54 HP DME to run as a standalone \u003cbr\u003e⦁ Top speed governor removed \u003cbr\u003e⦁ Increased RPM rev limit \u003cbr\u003e⦁ VANOS cam timing adjustment \u003cbr\u003e⦁ Improved throttle response \u003cbr\u003e⦁ Ignition timing enhancements \u003cbr\u003e⦁ Air\/Fuel Ratio enhancements \u003cbr\u003e⦁ No CAN system needed \u003cbr\u003e⦁ Air\/Fuel Ratio enhancements \u003cbr\u003e\u003cbr\u003e\u003cbr\u003eOPTIONS:\u003cbr\u003e⦁ Stock tune - No performance gains over a stock BMW tune. Just set up for a swap\u003cbr\u003e⦁ Maf based Performance tune - RK-Tunes Maf based tune set up for a swap\u003cbr\u003e⦁ Alpha N tune - RK-Tunes Alpha N tune set up for a swap.\u003cbr\u003e⦁ Burble - Emits flame and backfire when lifting off throttle. Only suggested for catless exhaust systems. \u003cbr\u003e⦁ Fuel - Selectable fuel octane rating (91, 93) \u003cbr\u003e\u003cbr\u003e\u003cbr\u003ePERFORMANCE SPECS BASED ON MODIFICATIONS: \u003cbr\u003eMAF BASED\u003cbr\u003e10-30+ WHP \u003cbr\u003e10-30+ FT\/LBS TQ \u003cbr\u003e\u003cbr\u003eALPHA-N\u003cbr\u003e15-35+ WHP\u003cbr\u003e15-35+ FT\/LBS TQ\u003cbr\u003e\u003cbr\u003eIn the modification box, please specify all current vehicle modifications and desired options.\u003c\/p\u003e","brand":"RK-Tunes","offers":[{"title":"Use your own DME \/ Stock tune","offer_id":31290886145,"sku":"7654345678986543","price":699.99,"currency_code":"USD","in_stock":true},{"title":"Use your own DME \/ Maf based tune","offer_id":31290886273,"sku":"456789876567","price":799.99,"currency_code":"USD","in_stock":true},{"title":"Use your own DME \/ Alpha N tune","offer_id":31290886401,"sku":"6545678976","price":1099.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1159\/4362\/files\/e46m3.png?v=1758739122"},{"product_id":"performance-tune-for-e9x-m3-2008-2013","title":"Performance tune for E90 | E92 M3 (2008-2013)","description":"\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eSINGLE MAP = ONE MAP FOR YOUR MODIFICATIONS\u003cbr\u003eMULTIPLE MAPS = ALL MAPS - (E85, 93, burble tune, flame tune) Please specify what maps you will want in the box provided!\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003eThis is our tried and tested tune for an E9x M3. These tunes were designed on a Dynojet dyno and tested in the real world! \u003cspan\u003eA Windows computer is required to utilize the RK-Tunes flash software. Check FAQ section for windows device recommendation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eKEY FEATURES:\u003cbr\u003e\u003cbr\u003e⦁ Top speed governor removed \u003cbr\u003e⦁ Increased RPM rev limit\u003cbr\u003e⦁ VANOS cam timing adjustment\u003cbr\u003e⦁ Improved throttle response \u003cbr\u003e⦁ Ignition timing enhancements\u003cbr\u003e⦁ Air\/Fuel Ratio enhancements\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eOPTIONS:\u003c\/p\u003e\n\u003cp\u003eFuel - Selectable fuel octane rating (91, 93,E85) \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBurble - backfire when lifting off throttle. We can adjust the amount of burble requested\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003ePERFORMANCE SPECS BASED ON MODIFICATIONS:\u003cbr\u003e20-30+ WHP\u003cbr\u003e20-30+ FT\/LBS TQ\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"RK-Tunes","offers":[{"title":"Performance N\/A Tune 1 Map!","offer_id":28564409665,"sku":"S65SINGLE","price":699.99,"currency_code":"USD","in_stock":true},{"title":"Supercharged Tune","offer_id":4806341394463,"sku":"S65SUPER","price":1199.99,"currency_code":"USD","in_stock":true},{"title":"Performance N\/A Tune Multiple maps","offer_id":43045964808297,"sku":"S65MUTI","price":999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1159\/4362\/files\/ChatGPTImageSep24_2025_03_30_51PM_92ccf7bf-d5e8-4629-a633-b8cb8aa5be69.png?v=1758742674"},{"product_id":"performance-tune-for-e60-m5-2005-2010","title":"Performance tune for E60 M5 (2006-2010)","description":"\u003cp\u003e\u003cstrong\u003eE60 M5 TUNE\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eThis is our tried and tested tune for an E60 M5. These tunes were designed on a Dynojet dyno and tested in the real world! All tune packages come with an OBD to USB cable and software to read and write your DME\/ECU. A Windows computer is required to utilize the RK-Tunes flash software. Check FAQ section for windows device recommendation. \u003cbr\u003e\u003cbr\u003e\u003cbr\u003eKEY FEATURES:\u003cbr\u003e\u003cbr\u003e⦁ Top speed governor removed \u003cbr\u003e⦁ Increased RPM rev limit\u003cbr\u003e⦁ VANOS cam timing adjustment\u003cbr\u003e⦁ Improved throttle response \u003cbr\u003e⦁ Ignition timing enhancements\u003cbr\u003e⦁ Air\/Fuel Ratio enhancements\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eOPTIONS:\u003c\/p\u003e\n\u003cp\u003e⦁Burble - \u003cspan\u003e backfire when lifting off throttle. We can adjust the amount of burble requested\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e⦁ Fuel - Selectable fuel octane rating (91, 93)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePERFORMANCE SPECS BASED ON MODIFICATIONS:\u003cbr\u003e20-35+ WHP\u003cbr\u003e15-25+ FT\/LBS TQ\u003cbr\u003e\u003cbr\u003eIn the modification box, please specify all current vehicle modifications and desired options.\u003c\/p\u003e","brand":"RK-Tunes","offers":[{"title":"Default Title","offer_id":30861281919081,"sku":"3452345","price":699.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1159\/4362\/files\/e60.png?v=1758744767"},{"product_id":"performance-tune-for-bmw-e46-3series-1999-2000","title":"Performance tune for BMW E46 - 3 Series - (1999-2006)","description":"\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eE46 3 Series (Non M3) TUNE\u003c\/strong\u003e \u003cbr\u003e\u003cbr\u003eThis is our tried and tested tune for all E46 3 Series (323, 325, 328, 330). These tunes were designed on a Dynojet dyno and tested in the real world! All tune packages come with an OBD to USB cable and software to read and write your DME\/ECU. A Windows computer is required to utilize the RK-Tunes flash software. Check FAQ section for windows device recommendations.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eKEY FEATURES: \u003c\/strong\u003e\u003cbr\u003e⦁ Top speed governor removed \u003cbr\u003e⦁ Increased RPM rev limit \u003cbr\u003e⦁ VANOS cam timing adjustment \u003cbr\u003e⦁ Improved throttle response \u003cbr\u003e⦁ Ignition timing enhancements \u003cbr\u003e⦁ Air\/Fuel Ratio enhancements \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eOPTIONS: \u003c\/strong\u003e\u003cbr\u003e⦁ Fuel - Selectable fuel octane rating (91, 93) \u003cbr\u003e⦁ Rear O2 Sensor Delete - If you are running aftermarket headers please select O2 Sensor delete. We will remove all coding associated with rear O2 sensors \u003cbr\u003e⦁ SAP (Secondary Air Pump) Delete - If you have deleted your Secondary Air Pump, please select this option and we will remove the coding from the DME\/ECU to avoid a CEL.\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003e⦁ **Burble only for certain ECU Types and must be Catless** MS42 and MS43 ECU\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003e⦁ **If your car is a 2003 we suggest removing the ecu and checking if it is MS43 or MS45. If it is MS45 select 2004 under the drop down box. The cost difference is for a different cable\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003ePERFORMANCE SPECS BASED ON MODIFICATIONS: 10-15+ WHP 8-14+ FT\/LBS TQ \u003cbr\u003e\u003cbr\u003eIn the modification box, please specify all current vehicle modifications and desired options.\u003c\/p\u003e","brand":"RK-Tunes","offers":[{"title":"1999-2003 (MS42 MS43)","offer_id":28754309761,"sku":"MS42","price":599.99,"currency_code":"USD","in_stock":true},{"title":"2004-2006 (MS45)","offer_id":28754310017,"sku":"MS45","price":599.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1159\/4362\/products\/E463ser.png?v=1589618499"},{"product_id":"performance-tune-for-obd1-turbo-s5x","title":"Performance tune for turbo OBD1 S5x M5x","description":"\u003cp\u003e\u003cstrong\u003e***WE ONLY TUNE WITH OUR SUPPLIED INJECTORS AND MAF. THERE IS NO EXCEPTIONS TO THIS***\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTURBO OBD1 S5x M5x TUNE\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eThis is our tried and tested tune for turbo OBD1 S5x M5x engines. These tunes were designed on a Dynojet dyno and tested in the real world! OBD1 engines receive a base map on a chip along with free revisions. 60LB injectors are good for 300-600WHP, and 115LB injectors on E85 are good for 350-900WHP.\u003cbr\u003e\u003cbr\u003eINCLUDES: \u003cbr\u003e⦁ Blow through MAF \u003cbr\u003e⦁ 60lb, 115lb high impedance injectors \u003cbr\u003e⦁ Wiring harness adapter \u003cbr\u003e⦁ Aluminium weld-on flange for a 3\" pipe In the modification box, please specify all current vehicle modifications and desired options.\u003cbr\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003ch2\u003e🚘 Horsepower Gains\u003c\/h2\u003e\n\u003chr data-start=\"229\" data-end=\"232\"\u003e\n\u003ch2 data-start=\"234\" data-end=\"278\"\u003e1. Power Potential (M52 \/ S52 w\/ M3 Cams)\u003c\/h2\u003e\n\u003cul data-start=\"279\" data-end=\"467\"\u003e\n\u003cli data-start=\"279\" data-end=\"314\"\u003e\n\u003cp data-start=\"281\" data-end=\"314\"\u003e\u003cstrong data-start=\"281\" data-end=\"303\"\u003eStock compression:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e~400 WHP\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"315\" data-end=\"368\"\u003e\n\u003cp data-start=\"317\" data-end=\"368\"\u003e\u003cstrong data-start=\"317\" data-end=\"357\"\u003eLow compression (cut ring + spacer):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e~500 WHP\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"369\" data-end=\"408\"\u003e\n\u003cp data-start=\"371\" data-end=\"408\"\u003e\u003cstrong data-start=\"371\" data-end=\"397\"\u003eE85 (any compression):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e600+ WHP\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"409\" data-end=\"467\"\u003e\n\u003cp data-start=\"411\" data-end=\"467\"\u003e\u003cstrong data-start=\"411\" data-end=\"420\"\u003eNote:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e328 cams remove ~40 WHP compared to M3 cams.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"469\" data-end=\"472\"\u003e\n\u003ch2 data-start=\"474\" data-end=\"502\"\u003e2. Turbo Options \u0026amp; Output\u003c\/h2\u003e\n\u003ch3 data-start=\"503\" data-end=\"516\"\u003ePrecision\u003c\/h3\u003e\n\u003cul data-start=\"517\" data-end=\"673\"\u003e\n\u003cli data-start=\"517\" data-end=\"628\"\u003e\n\u003cp data-start=\"519\" data-end=\"572\"\u003e\u003cstrong data-start=\"519\" data-end=\"554\"\u003e6266 (DBB best, journal works):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBaseline turbo.\u003c\/p\u003e\n\u003cul data-start=\"575\" data-end=\"628\"\u003e\n\u003cli data-start=\"575\" data-end=\"628\"\u003e\n\u003cp data-start=\"577\" data-end=\"628\"\u003eNext Gen version: +50 WHP (~700–850 WHP capable).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"629\" data-end=\"673\"\u003e\n\u003cp data-start=\"631\" data-end=\"673\"\u003e\u003cstrong data-start=\"631\" data-end=\"640\"\u003e6466:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAdds ~50 WHP compared to 6266.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"675\" data-end=\"686\"\u003eGarrett\u003c\/h3\u003e\n\u003cul data-start=\"687\" data-end=\"840\"\u003e\n\u003cli data-start=\"687\" data-end=\"775\"\u003e\n\u003cp data-start=\"689\" data-end=\"775\"\u003e\u003cstrong data-start=\"689\" data-end=\"701\"\u003eG35-900:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eComparable to 6262. Similar to 6266, but 6266 has a better power curve.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"776\" data-end=\"840\"\u003e\n\u003cp data-start=\"778\" data-end=\"840\"\u003e\u003cstrong data-start=\"778\" data-end=\"791\"\u003eGTX3582R:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMakes similar numbers, but weaker power curve.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"842\" data-end=\"856\"\u003eBorgWarner\u003c\/h3\u003e\n\u003cul data-start=\"857\" data-end=\"944\"\u003e\n\u003cli data-start=\"857\" data-end=\"944\"\u003e\n\u003cp data-start=\"859\" data-end=\"944\"\u003e\u003cstrong data-start=\"859\" data-end=\"870\"\u003eSXE362:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMatches 6266 in peak power, but spools later and loses boost on shifts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"946\" data-end=\"965\"\u003eSmaller Options\u003c\/h3\u003e\n\u003cul data-start=\"966\" data-end=\"1098\"\u003e\n\u003cli data-start=\"966\" data-end=\"1098\"\u003e\n\u003cp data-start=\"968\" data-end=\"996\"\u003e\u003cstrong data-start=\"968\" data-end=\"994\"\u003e6062 (~600 WHP turbo):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"999\" data-end=\"1098\"\u003e\n\u003cli data-start=\"999\" data-end=\"1039\"\u003e\n\u003cp data-start=\"1001\" data-end=\"1039\"\u003eMakes less power per pound of boost.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1042\" data-end=\"1098\"\u003e\n\u003cp data-start=\"1044\" data-end=\"1098\"\u003eLimited on pump fuel (expect ~50 WHP less vs. 6266).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1100\" data-end=\"1103\"\u003e\n\u003ch2 data-start=\"1105\" data-end=\"1134\"\u003e3. Engine: Stock vs. Built\u003c\/h2\u003e\n\u003cul data-start=\"1135\" data-end=\"1454\"\u003e\n\u003cli data-start=\"1135\" data-end=\"1181\"\u003e\n\u003cp data-start=\"1137\" data-end=\"1181\"\u003eA\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"1139\" data-end=\"1168\"\u003ebuilt engine adds zero HP\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eby itself.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1182\" data-end=\"1266\"\u003e\n\u003cp data-start=\"1184\" data-end=\"1266\"\u003eBenefit =\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"1194\" data-end=\"1208\"\u003edurability\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewhen mistakes happen (lean condition, overboost, etc.).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1267\" data-end=\"1454\"\u003e\n\u003cp data-start=\"1269\" data-end=\"1291\"\u003eReal-world examples:\u003c\/p\u003e\n\u003cul data-start=\"1294\" data-end=\"1454\"\u003e\n\u003cli data-start=\"1294\" data-end=\"1348\"\u003e\n\u003cp data-start=\"1296\" data-end=\"1348\"\u003eMany stock engines survive\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"1323\" data-end=\"1335\"\u003e600+ WHP\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor years.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1351\" data-end=\"1454\"\u003e\n\u003cp data-start=\"1353\" data-end=\"1454\"\u003eOthers fail at\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"1368\" data-end=\"1379\"\u003e350 WHP\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edue to install errors (vacuum lines wrong, bad fuel pump install, etc.).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1456\" data-end=\"1459\"\u003e\n\u003ch2 data-start=\"1461\" data-end=\"1476\"\u003e4. Manifolds\u003c\/h2\u003e\n\u003cul data-start=\"1477\" data-end=\"1963\"\u003e\n\u003cli data-start=\"1477\" data-end=\"1820\"\u003e\n\u003cp data-start=\"1479\" data-end=\"1493\"\u003e\u003cstrong data-start=\"1479\" data-end=\"1493\"\u003eTop Mount:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1496\" data-end=\"1820\"\u003e\n\u003cli data-start=\"1496\" data-end=\"1558\"\u003e\n\u003cp data-start=\"1498\" data-end=\"1558\"\u003eBest:\u003cspan\u003e \u003c\/span\u003e\u003cem data-start=\"1504\" data-end=\"1525\"\u003eOtis \/ Good \u0026amp; Tight\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e(E36, proven 900+ WHP, ~$600).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1561\" data-end=\"1619\"\u003e\n\u003cp data-start=\"1563\" data-end=\"1619\"\u003eOther solid options:\u003cspan\u003e \u003c\/span\u003e\u003cem data-start=\"1584\" data-end=\"1617\"\u003eJon Vigil Viengineered, 88 Lab.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1622\" data-end=\"1687\"\u003e\n\u003cp data-start=\"1624\" data-end=\"1687\"\u003eCX Racing: manifold cracks; charge pipe must be fully redone.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1690\" data-end=\"1820\"\u003e\n\u003cp data-start=\"1692\" data-end=\"1820\"\u003eAmerican-made options: good fabrication quality, but\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"1745\" data-end=\"1771\"\u003eexpect long lead times\u003c\/strong\u003e. Do\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"1776\" data-end=\"1783\"\u003enot\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efollow their “tuning suggestions.”\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1822\" data-end=\"1963\"\u003e\n\u003cp data-start=\"1824\" data-end=\"1841\"\u003e\u003cstrong data-start=\"1824\" data-end=\"1841\"\u003eBottom Mount:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1844\" data-end=\"1963\"\u003e\n\u003cli data-start=\"1844\" data-end=\"1916\"\u003e\n\u003cp data-start=\"1846\" data-end=\"1916\"\u003eSPA T4: caps out ~700 WHP (can push ~900, but backpressure extreme).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1919\" data-end=\"1963\"\u003e\n\u003cp data-start=\"1921\" data-end=\"1963\"\u003eCorey Misko: strong bottom-mount option.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1965\" data-end=\"1968\"\u003e\n\u003ch2 data-start=\"1970\" data-end=\"2001\"\u003e5. Exhaust \u0026amp; Turbine Housing\u003c\/h2\u003e\n\u003cul data-start=\"2002\" data-end=\"2125\"\u003e\n\u003cli data-start=\"2002\" data-end=\"2058\"\u003e\n\u003cp data-start=\"2004\" data-end=\"2058\"\u003eUse\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"2008\" data-end=\"2037\"\u003elarge housings (1.0+ A\/R)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor these engines.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2059\" data-end=\"2125\"\u003e\n\u003cp data-start=\"2061\" data-end=\"2125\"\u003e\u003cstrong data-start=\"2061\" data-end=\"2077\"\u003e3.5” exhaust\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ehelps reduce backpressure and raise safe WHP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2127\" data-end=\"2130\"\u003e\n\u003ch2 data-start=\"2132\" data-end=\"2150\"\u003e6. Intercoolers\u003c\/h2\u003e\n\u003cul data-start=\"2151\" data-end=\"2461\"\u003e\n\u003cli data-start=\"2151\" data-end=\"2228\"\u003e\n\u003cp data-start=\"2153\" data-end=\"2166\"\u003e\u003cstrong data-start=\"2153\" data-end=\"2164\"\u003eTR1035:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2169\" data-end=\"2228\"\u003e\n\u003cli data-start=\"2169\" data-end=\"2187\"\u003e\n\u003cp data-start=\"2171\" data-end=\"2187\"\u003eFits with A\/C.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2190\" data-end=\"2228\"\u003e\n\u003cp data-start=\"2192\" data-end=\"2228\"\u003eExcellent cooling for most builds.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2229\" data-end=\"2270\"\u003e\n\u003cp data-start=\"2231\" data-end=\"2270\"\u003e\u003cstrong data-start=\"2231\" data-end=\"2242\"\u003eTR1045:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBetter option if it fits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2271\" data-end=\"2370\"\u003e\n\u003cp data-start=\"2273\" data-end=\"2320\"\u003e\u003cem data-start=\"2273\" data-end=\"2280\"\u003eRule:\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003eKeep IAT low, especially on pump gas.\u003c\/p\u003e\n\u003cul data-start=\"2323\" data-end=\"2370\"\u003e\n\u003cli data-start=\"2323\" data-end=\"2370\"\u003e\n\u003cp data-start=\"2325\" data-end=\"2370\"\u003eHigh IAT + high backpressure = knock limit.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2371\" data-end=\"2461\"\u003e\n\u003cp data-start=\"2373\" data-end=\"2461\"\u003eWith big housing + 3.5” exhaust, some unopened S52\/M52s can push ~500 WHP on pump gas.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2463\" data-end=\"2466\"\u003e\n\u003ch2 data-start=\"2468\" data-end=\"2498\"\u003e7. Fuel \u0026amp; Octane Guidelines\u003c\/h2\u003e\n\u003cul data-start=\"2499\" data-end=\"2795\"\u003e\n\u003cli data-start=\"2499\" data-end=\"2537\"\u003e\n\u003cp data-start=\"2501\" data-end=\"2537\"\u003eAll WHP numbers are on\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"2524\" data-end=\"2534\"\u003e93 E10\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2538\" data-end=\"2602\"\u003e\n\u003cp data-start=\"2540\" data-end=\"2567\"\u003e\u003cstrong data-start=\"2540\" data-end=\"2560\"\u003eSubtract ~50 WHP\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor:\u003c\/p\u003e\n\u003cul data-start=\"2570\" data-end=\"2602\"\u003e\n\u003cli data-start=\"2570\" data-end=\"2580\"\u003e\n\u003cp data-start=\"2572\" data-end=\"2580\"\u003e91 E10\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2583\" data-end=\"2602\"\u003e\n\u003cp data-start=\"2585\" data-end=\"2602\"\u003e94 E10 (Canada)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2603\" data-end=\"2795\"\u003e\n\u003cp data-start=\"2605\" data-end=\"2615\"\u003e\u003cstrong data-start=\"2605\" data-end=\"2613\"\u003eE85:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2618\" data-end=\"2795\"\u003e\n\u003cli data-start=\"2618\" data-end=\"2653\"\u003e\n\u003cp data-start=\"2620\" data-end=\"2653\"\u003eHigher octane + cooling effect.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2656\" data-end=\"2748\"\u003e\n\u003cp data-start=\"2658\" data-end=\"2748\"\u003eSome think it’s a “bandaid,” but it’s actually a\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"2707\" data-end=\"2745\"\u003ehuge help in keeping engines alive\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2751\" data-end=\"2795\"\u003e\n\u003cp data-start=\"2753\" data-end=\"2795\"\u003eWorks at\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"2762\" data-end=\"2773\"\u003e35+ PSI\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eon any compression.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2797\" data-end=\"2800\"\u003e\n\u003ch2 data-start=\"2802\" data-end=\"2819\"\u003e8. Fuel System\u003c\/h2\u003e\n\u003cul data-start=\"2820\" data-end=\"3179\"\u003e\n\u003cli data-start=\"2820\" data-end=\"3050\"\u003e\n\u003cp data-start=\"2822\" data-end=\"2873\"\u003e\u003cstrong data-start=\"2822\" data-end=\"2870\"\u003eOver 255 lph pump → aftermarket FPR required\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul data-start=\"2876\" data-end=\"3050\"\u003e\n\u003cli data-start=\"2876\" data-end=\"2912\"\u003e\n\u003cp data-start=\"2878\" data-end=\"2912\"\u003eAER13129 fuel pressure regulator\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2915\" data-end=\"2973\"\u003e\n\u003cp data-start=\"2917\" data-end=\"2973\"\u003eTS-0402-1110 –6 ORB to 8mm barb fittings (to OEM line)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2976\" data-end=\"2998\"\u003e\n\u003cp data-start=\"2978\" data-end=\"2998\"\u003eTS-0402-2023 gauge\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3001\" data-end=\"3050\"\u003e\n\u003cp data-start=\"3003\" data-end=\"3050\"\u003e8mm E85-safe fuel line (PN: 27340 \/ 42196039)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3051\" data-end=\"3179\"\u003e\n\u003cp data-start=\"3053\" data-end=\"3090\"\u003e\u003cstrong data-start=\"3053\" data-end=\"3088\"\u003eRadium PTFE in-tank lines only.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"3093\" data-end=\"3179\"\u003e\n\u003cli data-start=\"3093\" data-end=\"3139\"\u003e\n\u003cp data-start=\"3095\" data-end=\"3139\"\u003eDo\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"3098\" data-end=\"3105\"\u003enot\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003euse pump-supplied or OEM lines.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3142\" data-end=\"3179\"\u003e\n\u003cp data-start=\"3144\" data-end=\"3179\"\u003eRadium PTFE will outlast the car.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3181\" data-end=\"3184\"\u003e\n\u003ch2 data-start=\"3186\" data-end=\"3203\"\u003e9. Spark Plugs\u003c\/h2\u003e\n\u003cul data-start=\"3204\" data-end=\"3408\"\u003e\n\u003cli data-start=\"3204\" data-end=\"3324\"\u003e\n\u003cp data-start=\"3206\" data-end=\"3237\"\u003e\u003cstrong data-start=\"3206\" data-end=\"3235\"\u003eNGK 4091 (up to 700 WHP):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"3240\" data-end=\"3324\"\u003e\n\u003cli data-start=\"3240\" data-end=\"3266\"\u003e\n\u003cp data-start=\"3242\" data-end=\"3266\"\u003e.024 gap → 350–450 WHP\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3269\" data-end=\"3295\"\u003e\n\u003cp data-start=\"3271\" data-end=\"3295\"\u003e.022 gap → 450–550 WHP\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3298\" data-end=\"3324\"\u003e\n\u003cp data-start=\"3300\" data-end=\"3324\"\u003e.018 gap → 550–700 WHP\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3325\" data-end=\"3408\"\u003e\n\u003cp data-start=\"3327\" data-end=\"3353\"\u003e\u003cstrong data-start=\"3327\" data-end=\"3351\"\u003eNGK 4554 (750+ WHP):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"3356\" data-end=\"3408\"\u003e\n\u003cli data-start=\"3356\" data-end=\"3382\"\u003e\n\u003cp data-start=\"3358\" data-end=\"3382\"\u003e.018 gap → 750–800 WHP\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3385\" data-end=\"3408\"\u003e\n\u003cp data-start=\"3387\" data-end=\"3408\"\u003e.016 gap → 850+ WHP\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3410\" data-end=\"3413\"\u003e\n\u003ch2 data-start=\"3415\" data-end=\"3446\"\u003e10. Boost \u0026amp; Tuning Practices\u003c\/h2\u003e\n\u003cul data-start=\"3447\" data-end=\"4200\"\u003e\n\u003cli data-start=\"3447\" data-end=\"3765\"\u003e\n\u003cp data-start=\"3449\" data-end=\"3486\"\u003e\u003cstrong data-start=\"3449\" data-end=\"3484\"\u003eAlways boost leak + smoke test.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"3489\" data-end=\"3765\"\u003e\n\u003cli data-start=\"3489\" data-end=\"3523\"\u003e\n\u003cp data-start=\"3491\" data-end=\"3523\"\u003eEven professionals find leaks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3526\" data-end=\"3609\"\u003e\n\u003cp data-start=\"3528\" data-end=\"3609\"\u003eCharge pipe popping off is not the most common failure—small leaks matter more.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3612\" data-end=\"3765\"\u003e\n\u003cp data-start=\"3614\" data-end=\"3691\"\u003ePMAS\/VMP MAF housings: they\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"3642\" data-end=\"3666\"\u003ealways leak slightly\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ethrough the connector.\u003c\/p\u003e\n\u003cul data-start=\"3696\" data-end=\"3765\"\u003e\n\u003cli data-start=\"3696\" data-end=\"3765\"\u003e\n\u003cp data-start=\"3698\" data-end=\"3765\"\u003eFix: apply silicone to the modification plate (email for images).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3766\" data-end=\"3838\"\u003e\n\u003cp data-start=\"3768\" data-end=\"3838\"\u003e\u003cstrong data-start=\"3768\" data-end=\"3801\"\u003eRun no boost controller first\u003c\/strong\u003e, then add it in (fewer variables).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3839\" data-end=\"3912\"\u003e\n\u003cp data-start=\"3841\" data-end=\"3912\"\u003eManual controller: use yours (others are bleed style = slower spool).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3913\" data-end=\"3973\"\u003e\n\u003cp data-start=\"3915\" data-end=\"3973\"\u003eElectric controllers: most are fine. AEM = hard to read.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3974\" data-end=\"4200\"\u003e\n\u003cp data-start=\"3976\" data-end=\"4050\"\u003e\u003cstrong data-start=\"3976\" data-end=\"4000\"\u003eCX Racing turbo kits\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e→ guaranteed boost creep, risk of motor damage.\u003c\/p\u003e\n\u003cul data-start=\"4053\" data-end=\"4200\"\u003e\n\u003cli data-start=\"4053\" data-end=\"4081\"\u003e\n\u003cp data-start=\"4055\" data-end=\"4081\"\u003eStart with 5 PSI spring.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4084\" data-end=\"4200\"\u003e\n\u003cp data-start=\"4086\" data-end=\"4200\"\u003eIf high-RPM boost exceeds 10 PSI (stock compression) or 15 PSI (low compression), fix manifold\/wastegate flange.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"4202\" data-end=\"4205\"\u003e\n\u003ch2 data-start=\"4207\" data-end=\"4232\"\u003e11. Intake \u0026amp; MAF Setup\u003c\/h2\u003e\n\u003cul data-start=\"4233\" data-end=\"4551\"\u003e\n\u003cli data-start=\"4233\" data-end=\"4309\"\u003e\n\u003cp data-start=\"4235\" data-end=\"4309\"\u003eMAF must be in\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"4250\" data-end=\"4279\"\u003estraight 3” aluminum pipe\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(not aftermarket housings).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4310\" data-end=\"4386\"\u003e\n\u003cp data-start=\"4312\" data-end=\"4386\"\u003eReducers (3\" → 2.75\"), even 10” away, = turbulence → drivability issues.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4387\" data-end=\"4551\"\u003e\n\u003cp data-start=\"4389\" data-end=\"4443\"\u003e\u003cstrong data-start=\"4389\" data-end=\"4441\"\u003eBOV must be fully closed at idle\/light throttle.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"4446\" data-end=\"4551\"\u003e\n\u003cli data-start=\"4446\" data-end=\"4495\"\u003e\n\u003cp data-start=\"4448\" data-end=\"4495\"\u003eIf it stays cracked open, use stiffer spring.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4498\" data-end=\"4551\"\u003e\n\u003cp data-start=\"4500\" data-end=\"4551\"\u003eEven small leaks 10” away from MAF cause surging.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"4553\" data-end=\"4556\"\u003e\n\u003ch2 data-start=\"4558\" data-end=\"4588\"\u003e12. Hoses, Couplers \u0026amp; Lines\u003c\/h2\u003e\n\u003cul data-start=\"4589\" data-end=\"4860\"\u003e\n\u003cli data-start=\"4589\" data-end=\"4648\"\u003e\n\u003cp data-start=\"4591\" data-end=\"4648\"\u003e\u003cstrong data-start=\"4591\" data-end=\"4628\"\u003eReinforced silicone couplers only\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor charge pipes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4649\" data-end=\"4698\"\u003e\n\u003cp data-start=\"4651\" data-end=\"4698\"\u003ePressure hoses: snug, with clamps + zip ties.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4699\" data-end=\"4770\"\u003e\n\u003cp data-start=\"4701\" data-end=\"4770\"\u003eVacuum hoses: silicone, very tight fit (Vibrant packs recommended).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4771\" data-end=\"4818\"\u003e\n\u003cp data-start=\"4773\" data-end=\"4818\"\u003eWastegate lines: reinforced silicone or AN.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4819\" data-end=\"4860\"\u003e\n\u003cp data-start=\"4821\" data-end=\"4860\"\u003eValve cover vent: vent to atmosphere.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"4862\" data-end=\"4865\"\u003e\n\u003ch2 data-start=\"4867\" data-end=\"4892\"\u003e13. E36-Specific Notes\u003c\/h2\u003e\n\u003cul data-start=\"4893\" data-end=\"5329\"\u003e\n\u003cli data-start=\"4893\" data-end=\"4952\"\u003e\n\u003cp data-start=\"4895\" data-end=\"4952\"\u003eICV fitting: clean + epoxy in place OR buy aftermarket.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4953\" data-end=\"5007\"\u003e\n\u003cp data-start=\"4955\" data-end=\"5007\"\u003eICV hoses: must be silicone (OEM fall apart\/leak).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"5008\" data-end=\"5094\"\u003e\n\u003cp data-start=\"5010\" data-end=\"5094\"\u003e\u003cstrong data-start=\"5010\" data-end=\"5063\"\u003eDo not use ICV hose kits going to a CCV separator\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e→ will pressurize crankcase.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"5095\" data-end=\"5135\"\u003e\n\u003cp data-start=\"5097\" data-end=\"5135\"\u003eO2 sensor: plug closest to firewall.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"5136\" data-end=\"5215\"\u003e\n\u003cp data-start=\"5138\" data-end=\"5215\"\u003eM50 manifold on OBD2: requires OBD2 IAT (thread to M12x1.5 or buy adapter).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"5216\" data-end=\"5265\"\u003e\n\u003cp data-start=\"5218\" data-end=\"5265\"\u003eUp pipe: idle may sound like a small misfire.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"5266\" data-end=\"5329\"\u003e\n\u003cp data-start=\"5268\" data-end=\"5329\"\u003eSAP valve: no need to plug in fuel rail harness connection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"5331\" data-end=\"5334\"\u003e\n\u003ch2 data-start=\"5336\" data-end=\"5369\"\u003e14. Fuel Octane \u0026amp; Boost Limits\u003c\/h2\u003e\n\u003cul data-start=\"5370\" data-end=\"5597\"\u003e\n\u003cli data-start=\"5370\" data-end=\"5416\"\u003e\n\u003cp data-start=\"5372\" data-end=\"5416\"\u003e\u003cstrong data-start=\"5372\" data-end=\"5406\"\u003eStock compression \/ 91 octane:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e7–9 PSI\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"5417\" data-end=\"5463\"\u003e\n\u003cp data-start=\"5419\" data-end=\"5463\"\u003e\u003cstrong data-start=\"5419\" data-end=\"5451\"\u003eLow compression \/ 91 octane:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e13–17 PSI\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"5464\" data-end=\"5511\"\u003e\n\u003cp data-start=\"5466\" data-end=\"5511\"\u003e\u003cstrong data-start=\"5466\" data-end=\"5500\"\u003eStock compression \/ 93 octane:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e7–12 PSI\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"5512\" data-end=\"5558\"\u003e\n\u003cp data-start=\"5514\" data-end=\"5558\"\u003e\u003cstrong data-start=\"5514\" data-end=\"5546\"\u003eLow compression \/ 93 octane:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e13–20 PSI\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"5559\" data-end=\"5597\"\u003e\n\u003cp data-start=\"5561\" data-end=\"5597\"\u003e\u003cstrong data-start=\"5561\" data-end=\"5587\"\u003eAny compression \/ E85:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e35+ PSI\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"5599\" data-end=\"5602\"\u003e\n\u003ch2 data-start=\"5604\" data-end=\"5629\"\u003e15. Support Guidelines\u003c\/h2\u003e\n\u003cul data-start=\"5630\" data-end=\"6021\"\u003e\n\u003cli data-start=\"5630\" data-end=\"5854\"\u003e\n\u003cp data-start=\"5632\" data-end=\"5666\"\u003e\u003cstrong data-start=\"5632\" data-end=\"5664\"\u003eFor support, always include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"5669\" data-end=\"5854\"\u003e\n\u003cli data-start=\"5669\" data-end=\"5719\"\u003e\n\u003cp data-start=\"5671\" data-end=\"5719\"\u003eScreenshot of codes (using supplied software).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"5722\" data-end=\"5768\"\u003e\n\u003cp data-start=\"5724\" data-end=\"5768\"\u003eDatalog (single gear pull, 100% throttle).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"5771\" data-end=\"5854\"\u003e\n\u003cp data-start=\"5773\" data-end=\"5854\"\u003ePhotos: vacuum routing, ICV hoses, FPR line routing, MAF + charge pipe routing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"5855\" data-end=\"5933\"\u003e\n\u003cp data-start=\"5857\" data-end=\"5933\"\u003e\u003cem data-start=\"5857\" data-end=\"5931\"\u003eDo not send logs with multiple gear pulls unless specifically requested.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"5934\" data-end=\"6021\"\u003e\n\u003cp data-start=\"5936\" data-end=\"5973\"\u003eAll logs must be\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"5953\" data-end=\"5970\"\u003efull throttle\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cul data-start=\"5976\" data-end=\"6021\"\u003e\n\u003cli data-start=\"5976\" data-end=\"6021\"\u003e\n\u003cp data-start=\"5978\" data-end=\"6021\"\u003eIf traction issues: log in a higher gear.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RK-Tunes","offers":[{"title":"60LB injectors","offer_id":28562643201,"sku":"OBD1TURBO60","price":1600.0,"currency_code":"USD","in_stock":true},{"title":"115LB injectors","offer_id":28562688769,"sku":"OBD1TURBO115","price":1950.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1159\/4362\/files\/BMWE36M3onDynamometerTest_e67cddea-8866-44f6-990f-11451f9ac30e.png?v=1758739578"},{"product_id":"performance-tune-for-obd2-turbo-m5x","title":"Tune for turbo OBD2 S5x M5x","description":"\u003cp\u003e\u003cstrong\u003eNOTE*\u003cbr\u003eFlex fuel + rolling antilag will be released soon.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e***WE ONLY TUNE WITH OUR SUPPLIED INJECTORS AND MAF. THERE IS NO EXCEPTIONS TO THIS***\u003cbr\u003eTURBO OBD2 S5x M5x TUNE\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThis is our tried and tested tune for turbo OBD2 S5x M5x engines. These tunes were designed on a Dynojet dyno and tested in the real world! OBD2 vehicles receive a set of remote tuning cables to flash your DME and free revisions. \u003cbr\u003e\u003cbr\u003eInjector sizing info - These sizes are at their max, \u003c\/span\u003e\u003cspan\u003eexpect to run less than this for overhead\u003cbr\u003e80LB injectors- 800WHP on gas 550WHP on E85\u003cbr\u003e115LB injectors 1000+WHP on Gas and 900WHP on E85.\u003cbr\u003eContact us for larger sizing if needed.  \u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eINCLUDES: \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Blow through MAF \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ 80lb, or 115lb high impedance injectors \u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e⦁ Wiring harness adapter \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Aluminium weld-on flange for a 3\" pipe In the modification box, please specify all current vehicle modifications and desired options.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOptions :\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #666666; font-family: Karla, HelveticaNeue, 'Helvetica Neue', sans-serif; font-size: 16px; line-height: 22px; background-color: #e7e7e7;\"\u003e⦁ Launch control\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #666666; font-family: Karla, HelveticaNeue, 'Helvetica Neue', sans-serif; font-size: 16px; line-height: 22px; background-color: #e7e7e7;\"\u003e⦁ Backfire\/Burble. This makes your car backfire or burble when you lift off the gas. The aggressiveness can be adjusted depending on what you want.\u003cbr\u003e\u003cbr\u003e- Flex fuel coming soon \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"RK-Tunes","offers":[{"title":"80LB injectors","offer_id":28562649793,"sku":"OBD2TURBO60","price":1600.0,"currency_code":"USD","in_stock":true},{"title":"115LB injectors","offer_id":28563066497,"sku":"OBD2TURBO115","price":1950.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1159\/4362\/files\/BMWE36M3onDynamometerTest.png?v=1758739598"},{"product_id":"performance-tune-for-obd2-e36-3-series-1996-1999","title":"Performance tune for OBD2 E36 3-series (1996-1999)","description":"\u003cp\u003e\u003ca href=\"https:\/\/www.rktunes.com\/collections\/all\/products\/advanced-feature-e36-obd2-tune-1996-1999?variant=41136001810537\"\u003e\u003cstrong\u003eNOTE *We offer \u003cbr\u003eFlex fuel, rolling antilag, Two step on our Advance feature E36 Tune. \u003cbr\u003eHERE\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cspan\u003eThis is our tried and tested tune for all OBD2 M52 and S52 engines. These tunes were designed on a Dynojet dyno and tested in the real world! All tune packages come with an OBD to USB cable and software to read and write your DME\/ECU. A Windows computer is required to utilize the RK-Tunes flash software. Check FAQ section for windows device recommendation. Before completing your purchase, please specify your vehicle year. For an obd2 e36 you must run the oem OBD2 maf or a 540 MAF. *Note for 540 MAF the whole connector must be swapped or the oem one must be modified*\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eKEY FEATURES: \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Top speed governor removed \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Increased RPM rev limit \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ VANOS cam timing adjustment \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Improved throttle response \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Can tune for any octane\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003ePERFORMANCE SPECS: \u003cbr\u003e8-20+WHP \u003cbr\u003e8-20+ FT\/LBS TQ \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOPTIONS:\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e⦁ Burble \u003cbr\u003e⦁ Fuel - tell me us fuel octane rating (89, 90, 91, 93) \u003cbr\u003e\u003cspan style=\"color: #666666; font-family: Karla, HelveticaNeue, 'Helvetica Neue', sans-serif; font-size: 16px; line-height: 22px; background-color: #e7e7e7;\"\u003e⦁ Backfire\/Burble. This makes your car backfire or burble when you lift off the gas. The aggressiveness can be adjusted depending on what you want. We suggest catless downpipes if you want an aggressive burble \/ backfire. \u003cbr\u003eAnd much more+\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn the modification box, please specify all current vehicle modifications and desired options. \u003c\/span\u003e\u003c\/p\u003e","brand":"RK-Tunes","offers":[{"title":"M52","offer_id":32392748630121,"sku":"4345678","price":499.99,"currency_code":"USD","in_stock":true},{"title":"S52","offer_id":32392748662889,"sku":"76543567865","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1159\/4362\/files\/e36.png?v=1758739428"},{"product_id":"performance-tune-for-e46-m3","title":"Performance tune for E46 M3","description":"\u003cp\u003e­­\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThis is our tried and tested tune for an E46 M3. These tunes were designed on a Dynojet dyno and tested in the real world! We offer both MAF based and ALPHA-N tunes. Our ALPHA-N tune has an additional 15% increase in power over the MAF based tune. The ALPHA-N tune requires the MAF to be deleted, and the installation of a new Air Intake Temperature Sensor included in your purchase. Please select whether you would like a MAF based, ALPHA-N \/ Mafless, or a tune for a Supercharged S54. All tune packages come with an OBD to USB cable and software to read and write your DME\/ECU. A Windows computer is required to utilize the RK-Tunes flash software. Check FAQ section for windows device recommendation. \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eKEY FEATURES: \u003cbr\u003e⦁ Top speed governor removed \u003cbr\u003e⦁ Increased RPM rev limit \u003cbr\u003e⦁ VANOS cam timing adjustment \u003cbr\u003e⦁ Improved throttle response \u003cbr\u003e⦁ Ignition timing enhancements \u003cbr\u003e⦁ Air\/Fuel Ratio enhancements \u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eOPTIONS:\u003cbr\u003e⦁ Stock tune - No performance gains over a stock BMW tune. Just set up for a swap\u003cbr\u003e⦁ Maf based Performance tune - RK-Tunes Maf based tune set up for a swap\u003cbr\u003e⦁ Alpha N tune - RK-Tunes Alpha N tune set up for a swap.\u003cbr\u003e⦁ Burble - Emits flame and backfire when lifting off throttle. \u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e⦁ Fuel - Selectable fuel octane rating (91, 93) \u003cbr\u003e\u003cspan\u003e⦁ Launch Control - Manual cars only allows for launch control at any RPM. \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003ePERFORMANCE SPECS BASED ON MODIFICATIONS: \u003cbr\u003eMAF BASED\u003cbr\u003e10-30+ WHP \u003cbr\u003e10-30+ FT\/LBS TQ \u003cbr\u003e\u003cbr\u003eALPHA-N\u003cbr\u003e15-35+ WHP\u003cbr\u003e15-35+ FT\/LBS TQ\u003cbr\u003e\u003cbr\u003eIn the modification box, please specify all current vehicle modifications and desired options.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSupercharged tunes include data Logging software and remote dyno tuning at no extra cost. We suggest having an Innovate wideband to make the process easier.\u003c\/p\u003e","brand":"RK-Tunes","offers":[{"title":"MAF Based \/ Yes Please!","offer_id":31291563521,"sku":"45234","price":699.99,"currency_code":"USD","in_stock":true},{"title":"MAF Based \/ No thanks","offer_id":42740513374313,"sku":"TUNE-E46-MAF-BASED-\/-NO-THANK","price":699.99,"currency_code":"USD","in_stock":true},{"title":"Alpha-N \/ Yes Please!","offer_id":31291563777,"sku":"523","price":999.99,"currency_code":"USD","in_stock":true},{"title":"Alpha-N \/ No thanks","offer_id":42740513407081,"sku":"TUNE-E46-ALPHA-N-\/-NO-THANKS","price":999.99,"currency_code":"USD","in_stock":true},{"title":"Supercharged \/ Yes Please!","offer_id":33272343617,"sku":"4523","price":1599.99,"currency_code":"USD","in_stock":true},{"title":"Supercharged \/ No thanks","offer_id":42740513439849,"sku":"TUNE-E46-SUPERCHARGED-\/-NO-TH","price":1599.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1159\/4362\/files\/e46m3_0766d429-230d-4dea-88c9-638b2f7290d7.png?v=1758739113"},{"product_id":"s52-swap-tune-for-obd2-e36-3-series-1996-1999","title":"S52\/M52 Swap Tune (E36 M3 motor in a diffrent chassis)","description":"\u003cp\u003e\u003cstrong\u003eS52\/M52 SWAP TUNE \u003cbr\u003e \u003cbr\u003e\u003c\/strong\u003e\u003cspan\u003eThis is our tried and tested tune for all swapped S52\/M52 engines. These tunes were designed on a Dynojet dyno and tested in the real world! All tune packages come with an OBD to USB cable and software to read and write your DME\/ECU. A Windows computer is required to utilize the RK-Tunes flash software. Check FAQ section for windows device recommendation. Before completing your purchase, please specify your vehicle year. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eINCLUDED:\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e⦁ OBD2 Adapter to allow for Flashing Under Hood\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan\u003eKEY FEATURES: \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Top speed governor removed \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Increased RPM rev limit \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ VANOS cam timing adjustment \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Improved throttle response \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e⦁ Multiple fuel octane rating settings \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003ePERFORMANCE SPECS: \u003cbr\u003e8-20+WHP \u003cbr\u003e8-20+ FT\/LBS TQ \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOPTIONS:\u003c\/p\u003e\n\u003cp\u003e⦁ Burble (your car has to be catless)\u003cbr\u003e⦁ Fuel - Selectable fuel octane rating (91, 93) \u003cbr\u003e⦁ Rear O2 Sensor Delete - If you are running aftermarket headers please select O2 Sensor delete. We will remove all coding associated with rear O2 sensors\u003cbr\u003e⦁ SAP (Secondary Air Pump) Delete - If you have deleted your Secondary Air Pump, please select this option and we will remove the coding from the DME\/ECU to avoid a CEL.\u003cbr\u003e\u003cspan style=\"color: #666666; font-family: Karla, HelveticaNeue, 'Helvetica Neue', sans-serif; font-size: 16px; line-height: 22px; background-color: #e7e7e7;\"\u003e⦁ Backfire\/Burble. This makes your car backfire or burble when you lift off the gas. The aggressiveness can be adjusted depending on what you want. We suggest catless downpipes if you want an aggressive burble \/ backfire. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #666666; font-family: Karla, HelveticaNeue, 'Helvetica Neue', sans-serif; font-size: 16px; line-height: 22px; background-color: #e7e7e7;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn the modification box, please specify all current vehicle modifications and desired options. \u003c\/span\u003e\u003c\/p\u003e","brand":"RK-Tunes","offers":[{"title":"Default Title","offer_id":30873847595113,"sku":"567876543456789","price":599.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1159\/4362\/products\/20161123_233641_66efc5db-16e5-4c94-936f-da339d539db1.jpg?v=1589617586"},{"product_id":"performance-tune-for-f-g-series-b58","title":"Performance tune for F+G Series B58 - 240i 340i 440i 540i M240 M340 M440 A90 Supra","description":"\u003cp\u003e\u003cspan\u003eThis is our tried and tested tune for the B58 platform. These tunes were designed on a Dynojet dyno and tested in the real world!  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePLEASE NOTE: 2021+ MODEL YEAR CARS REQUIRE AN ECU BENCH UNLOCK BEFORE TUNING IS POSSIBLE. FOR MORE INFORMATION PLEASE CLICK \u003ca href=\"https:\/\/www.rktunes.com\/products\/femto-unlock-06-2020-production-date-bmw-supra-dme-unlock?_pos=1\u0026amp;_sid=914b1269d\u0026amp;_ss=r\" title=\"2021+ ECU unlock\"\u003e\u003cspan style=\"text-decoration: underline; color: #1d89ff;\" data-darkreader-inline-color=\"\"\u003eHERE\u003c\/span\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eALL TUNING IS DONE VIA \u003cspan style=\"color: rgb(255, 42, 0); text-decoration: underline;\" data-darkreader-inline-color=\"\"\u003eMHD ONLY\u003c\/span\u003e. THIS REQUIRES YOU TO HAVE AN ENET OBD2 ADAPTER, AND THE CORRECT LICENSES FROM THE RESPECTIVE TUNING PLATFORM. IF YOU HAVE ANY QUESTIONS PLEASE CONTACT US BEFORE PURCHASING.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eSupported vehicles:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"text-decoration: underline;\"\u003e\u003c\/span\u003eF3x 340i\/440i\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eF2x M240i\/140i\u003c\/li\u003e\n\u003cli\u003eG3x 540i\u003c\/li\u003e\n\u003cli\u003eG1x 740i\u003c\/li\u003e\n\u003cli\u003eG32 640i GT\u003c\/li\u003e\n\u003cli\u003eX3\/X4 M40i\u003c\/li\u003e\n\u003cli\u003eG05 X5 40i\u003c\/li\u003e\n\u003cli\u003eG29 Z4 M40i\u003c\/li\u003e\n\u003cli\u003eA90\/A91 Toyota Supra\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"v-stack gap-8 sm:gap-12\"\u003e\n\u003cdiv class=\"prose\"\u003e\n\u003cdiv\u003e\n\u003ch2\u003e🚘 Horsepower Gains\u003c\/h2\u003e\n\u003ch2\u003eB58 Gen 1 Build Breakdown (2016–2018 models)\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eStock WHP:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e330\u003c\/p\u003e\n\u003ch3\u003e440 WHP (+110 WHP over stock)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMHD Super License (\u003ca rel=\"noopener\" href=\"https:\/\/www.rktunes.com\/products\/mhd-super-license-for-bmw-f-and-g-series-n55-b58-s55-s58-s63?variant=41602406383721\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eMHD Wireless Flash Adapter (\u003ca href=\"https:\/\/www.rktunes.com\/products\/mhd-wireless-obdii-wifi-flash-adapter-f-and-g-series\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eNGK 94201 spark plugs (\u003ca href=\"https:\/\/www.rktunes.com\/products\/ngk-94201-pre-gapped-spark-plug-set-b58?_pos=1\u0026amp;_sid=63fea5df6\u0026amp;_ss=r\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eRK Tunes Front Mount Intake (\u003ca href=\"https:\/\/www.rktunes.com\/products\/f30-g20-b58-front-mount-intake\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eRK Tunes High Output Ignition Coil Packs (\u003ca href=\"https:\/\/www.rktunes.com\/products\/rktunes-b-series-ignition-coils-set-of-6\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eRK Tunes Charge Pipe\u003c\/li\u003e\n\u003cli\u003eRK Tunes Custom tune\u003ca rel=\"noopener\" href=\"https:\/\/www.rktunes.com\/products\/performance-tune-for-f-g-series-b58?_pos=14\u0026amp;_sid=176f6434d\u0026amp;_ss=r\" target=\"_blank\"\u003e\u003cspan\u003e \u003c\/span\u003e(Link to product)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e455 WHP (+125 WHP over stock)\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eAll above PLUS below:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHi-Flow Catted Downpipe\u003c\/li\u003e\n\u003cli\u003e93 Octane\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e510 WHP (+180 WHP over stock)\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eAll above PLUS below:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eE30 Fuel Blend\u003c\/li\u003e\n\u003cli\u003eMHD Flex-Fuel Kit (\u003ca href=\"https:\/\/www.rktunes.com\/products\/mhd-flexfuel-analyzer-kit-for-bmw-f80-f30-f22-f25-f40-n55-s55\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e650 WHP (+320 WHP over stock)\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eAll above PLUS below:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRK Tunes Dual Ball Bearing Turbo\u003c\/li\u003e\n\u003cli\u003eDS2.5 HPFP OR Port Injection with MOTIV Reflex \u0026amp; 750cc+ Injectors (\u003ca href=\"https:\/\/www.rktunes.com\/products\/motiv-reflex-advanced-i-o-integration-bmw-toyota-supra\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eRK Tunes Low-Pressure Fuel Pump\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e750 WHP (+420 WHP over stock)\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eAll above PLUS below:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStage 1 Transmission \/ Upgraded Clutch (manual)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e850–900 WHP (+520–570 WHP over stock)\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eAll above PLUS below:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFull-Frame Turbo (6466)\u003c\/li\u003e\n\u003cli\u003eCharge Air Cooler \/ Upgraded Intake Manifold\u003c\/li\u003e\n\u003cli\u003eStage 2 or Better Transmission\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e950–1100+ WHP (+620–770 WHP over stock)\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eAll above PLUS below:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFull-Frame Turbo (68–70mm+)\u003c\/li\u003e\n\u003cli\u003eFully Built Engine\u003c\/li\u003e\n\u003cli\u003eFull Low-Pressure Fuel Pump System (2+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNotes (B58 Gen 1):\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ Spark plugs every 10k miles (NGK 94201).\u003c\/li\u003e\n\u003cli\u003e✅ Ignition coils every 50K miles.\u003c\/li\u003e\n\u003cli\u003e✅ New factory direct injectors suggested every 70K miles.\u003c\/li\u003e\n\u003cli\u003e✅ Hi-Flow Catted Downpipes recommended.\u003c\/li\u003e\n\u003cli\u003e✅ Charge pipes get brittle and break randomly.\u003c\/li\u003e\n\u003cli\u003e✅ Manual cars require upgraded clutch at higher WHP.\u003c\/li\u003e\n\u003cli\u003e✅ Port Injection \u0026gt; DI-only for high WHP builds.\u003c\/li\u003e\n\u003cli\u003e✅ RK-Tunes parts recommended but not mandatory.\u003c\/li\u003e\n\u003cli\u003e✅ We NEVER tune with methanol injection.\u003c\/li\u003e\n\u003cli\u003e✅ See Direct Injection vs Direct Injection + Port Injection breakdown for all cars.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e✅ Spark Plug Gaps:\u003c\/strong\u003e\u003cbr\u003e– ≤550 WHP: .030\u003cbr\u003e– 551–700 WHP: .025\u003cbr\u003e– 701–850 WHP: .022\u003cbr\u003e– 851–1000 WHP: .018\u003cbr\u003e– 1000+ WHP: .016\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"v-stack gap-8 sm:gap-12\"\u003e\n\u003cdiv class=\"prose\"\u003e\n\u003cdiv\u003e\n\u003ch2\u003eB58 Gen 2 Build Breakdown (2019+ models)\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eStock WHP:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e340\u003c\/p\u003e\n\u003ch3\u003e440 WHP (+100 WHP over stock)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMHD Super License (\u003ca rel=\"noopener\" href=\"https:\/\/www.rktunes.com\/products\/mhd-super-license-for-bmw-f-and-g-series-n55-b58-s55-s58-s63?variant=41602406383721\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eMHD Wireless Flash Adapter (\u003ca href=\"https:\/\/www.rktunes.com\/products\/mhd-wireless-obdii-wifi-flash-adapter-f-and-g-series\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eNGK 94201 spark plugs (\u003ca href=\"https:\/\/www.rktunes.com\/products\/ngk-94201-pre-gapped-spark-plug-set-b58?_pos=1\u0026amp;_sid=63fea5df6\u0026amp;_ss=r\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eRK Tunes Front Mount Intake (\u003ca href=\"https:\/\/www.rktunes.com\/products\/g-series-b58-front-mount-intake-1?_pos=1\u0026amp;_sid=96dbac613\u0026amp;_ss=r\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eRK Tunes High Output Ignition Coil Packs (\u003ca href=\"https:\/\/www.rktunes.com\/products\/rktunes-b-series-ignition-coils-set-of-6\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eRK Tunes Charge Pipe\u003c\/li\u003e\n\u003cli\u003eRK Tunes Custom tune\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noopener\" href=\"https:\/\/www.rktunes.com\/products\/performance-tune-for-f-g-series-b58?_pos=14\u0026amp;_sid=176f6434d\u0026amp;_ss=r\" target=\"_blank\"\u003e(Link to product)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e455 WHP (+115 WHP over stock)\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eAll above PLUS below:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHi-Flow Catted Downpipe\u003c\/li\u003e\n\u003cli\u003e93 Octane\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e510 WHP (+170 WHP over stock)\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eAll above PLUS below:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eE30 Fuel Blend\u003c\/li\u003e\n\u003cli\u003eMHD Flex-Fuel Kit (\u003ca href=\"https:\/\/www.rktunes.com\/products\/mhd-flexfuel-analyzer-kit-for-bmw-f80-f30-f22-f25-f40-n55-s55\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e650 WHP (+310 WHP over stock)\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eAll above PLUS below:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRK Tunes Dual Ball Bearing Turbo\u003c\/li\u003e\n\u003cli\u003ePort Injection with MOTIV Reflex \u0026amp; 750cc+ Injectors (\u003ca href=\"https:\/\/www.rktunes.com\/products\/motiv-reflex-advanced-i-o-integration-bmw-toyota-supra\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eRK Tunes Low-Pressure Fuel Pump \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e750 WHP (+410 WHP over stock)\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eAll above PLUS below:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStage 1 Transmission \/ Upgraded Clutch (manual)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e850–900 WHP (+510–560 WHP over stock)\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eAll above PLUS below:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFull-Frame Turbo (6466)\u003c\/li\u003e\n\u003cli\u003eCharge Air Cooler \/ Upgraded Intake Manifold\u003c\/li\u003e\n\u003cli\u003eStage 2 or Better Transmission\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e950–1100+ WHP (+610–760 WHP over stock)\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eAll above PLUS below:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFull-Frame Turbo (68–70mm+)\u003c\/li\u003e\n\u003cli\u003eFully Built Engine\u003c\/li\u003e\n\u003cli\u003eFull Low-Pressure Fuel Pump System (2+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNotes (B58 Gen 2):\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ Spark plugs every 10k miles (NGK 94201)\u003c\/li\u003e\n\u003cli\u003e✅ Ignition coils every 50K miles\u003c\/li\u003e\n\u003cli\u003e✅ New factory direct injectors suggested every 70K miles\u003c\/li\u003e\n\u003cli\u003e✅ Hi-Flow Catted Downpipes recommended\u003c\/li\u003e\n\u003cli\u003e✅ Charge pipes get brittle and break randomly\u003c\/li\u003e\n\u003cli\u003e✅ Manual cars require upgraded clutch at higher WHP\u003c\/li\u003e\n\u003cli\u003e✅ Port Injection \u0026gt; DI-only for high WHP builds\u003c\/li\u003e\n\u003cli\u003e✅ RK-Tunes parts recommended but not mandatory\u003c\/li\u003e\n\u003cli\u003e✅ We NEVER tune with methanol injection\u003c\/li\u003e\n\u003cli\u003e✅ See Direct Injection vs Direct Injection + Port Injection breakdown for all cars\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e✅ Spark Plug Gaps:\u003c\/strong\u003e\u003cbr\u003e≤550 WHP: .030\u003cbr\u003e551–700 WHP: .025\u003cbr\u003e701–850 WHP: .022\u003cbr\u003e851–1000 WHP: .018\u003cbr\u003e1000+ WHP: .016\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"RK-Tunes","offers":[{"title":"No \/ Stock Turbo \/ none","offer_id":40560554508393,"sku":"TUNE-B58-NO-\/-STOCK-TURBO-\/-N","price":1199.99,"currency_code":"USD","in_stock":true},{"title":"No \/ Stock Turbo \/ 1","offer_id":40560554541161,"sku":"TUNE-B58-NO-\/-STOCK-TURBO-\/-1","price":1399.99,"currency_code":"USD","in_stock":true},{"title":"No \/ Stock Turbo \/ 2","offer_id":40560554573929,"sku":"TUNE-B58-NO-\/-STOCK-TURBO-\/-2","price":1499.99,"currency_code":"USD","in_stock":true},{"title":"No \/ Stock Turbo \/ 3","offer_id":40560554606697,"sku":"TUNE-B58-NO-\/-STOCK-TURBO-\/-3","price":1899.99,"currency_code":"USD","in_stock":true},{"title":"No \/ Upgraded Turbo \/ none","offer_id":40560554639465,"sku":"TUNE-B58-NO-\/-UPGRADED-TURBO-","price":1599.99,"currency_code":"USD","in_stock":true},{"title":"No \/ Upgraded Turbo \/ 1","offer_id":40560554672233,"sku":"TUNE-B58-NO-\/-UPGRADED-TURBO--2","price":1799.99,"currency_code":"USD","in_stock":true},{"title":"No \/ Upgraded Turbo \/ 2","offer_id":40560554705001,"sku":"TUNE-B58-NO-\/-UPGRADED-TURBO--3","price":1899.99,"currency_code":"USD","in_stock":true},{"title":"No \/ Upgraded Turbo \/ 3","offer_id":40560554737769,"sku":"TUNE-B58-NO-\/-UPGRADED-TURBO--4","price":2099.99,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Stock Turbo \/ none","offer_id":40560554770537,"sku":"TUNE-B58-YES-+$200-\/-STOCK-TU","price":1399.99,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Stock Turbo \/ 1","offer_id":40560554803305,"sku":"TUNE-B58-YES-+$200-\/-STOCK-TU-2","price":1599.99,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Stock Turbo \/ 2","offer_id":40560554836073,"sku":"TUNE-B58-YES-+$200-\/-STOCK-TU-3","price":1699.99,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Stock Turbo \/ 3","offer_id":40560554868841,"sku":"TUNE-B58-YES-+$200-\/-STOCK-TU-4","price":2099.99,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Upgraded Turbo \/ none","offer_id":40560554901609,"sku":"TUNE-B58-YES-+$200-\/-UPGRADED","price":1999.99,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Upgraded Turbo \/ 1","offer_id":40560554934377,"sku":"TUNE-B58-YES-+$200-\/-UPGRADED-2","price":2199.99,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Upgraded Turbo \/ 2","offer_id":40560554967145,"sku":"TUNE-B58-YES-+$200-\/-UPGRADED-3","price":2399.99,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Upgraded Turbo \/ 3","offer_id":40560554999913,"sku":"TUNE-B58-YES-+$200-\/-UPGRADED-4","price":2599.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1159\/4362\/files\/ChatGPTImageSep24_2025_03_29_15PM.png?v=1758742580"},{"product_id":"performance-tune-for-s55","title":"Performance tune for S55 - F80 F82 F83 F87 M2 M3 M4","description":"\u003cp\u003e\u003cspan\u003eThis is our tried and tested tune for the S55 platform. These tunes were designed on a Dynojet dyno and tested in the real world!  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePLEASE NOTE: 2021 MODEL YEAR M2 COMPETITION REQUIRES AN ECU BENCH UNLOCK BEFORE TUNING IS POSSIBLE. FOR MORE INFORMATION PLEASE EMAIL \u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan data-darkreader-inline-color=\"\" style=\"color: #278eff; text-decoration: underline;\"\u003esales@rktunes.com\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eALL TUNING IS DONE VIA \u003cspan data-darkreader-inline-color=\"\" style=\"color: rgb(255, 42, 0); text-decoration: underline;\"\u003eMHD ONLY\u003c\/span\u003e. THIS REQUIRES YOU TO HAVE AN ENET OBD2 ADAPTER, AND THE CORRECT LICENSES FROM THE RESPECTIVE TUNING PLATFORM. IF YOU HAVE ANY QUESTIONS PLEASE CONTACT US BEFORE PURCHASING.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cbr\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e🚘 Horsepower Gains\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eStock WHP:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e440\u003c\/p\u003e\n\u003ch3\u003e520 WHP (+80 WHP over stock)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRK Tunes Front Mount Intake (\u003ca href=\"https:\/\/www.rktunes.com\/products\/f8x-m3-m4-s55-front-mount-air-intakes-2014\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eHi‑Flow Catted Downpipes\u003c\/li\u003e\n\u003cli\u003eCustom Tune from RK Tunes (\u003ca href=\"https:\/\/www.rktunes.com\/products\/performance-tune-for-s55\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eMHD Super License (\u003ca rel=\"noopener\" href=\"https:\/\/www.rktunes.com\/products\/mhd-super-license-for-bmw-f-and-g-series-n55-b58-s55-s58-s63?variant=41602406350953\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eMHD Wireless Flash Adapter (\u003ca href=\"https:\/\/www.rktunes.com\/products\/mhd-wireless-obdii-wifi-flash-adapter-f-and-g-series\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eNGK 97506 spark plugs (\u003ca href=\"https:\/\/www.rktunes.com\/products\/ngk-97506-pre-gapped-spark-plug-set\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eRK Tunes High‑Output Ignition Coil Packs (\u003ca href=\"https:\/\/www.rktunes.com\/products\/rktunes-b-series-ignition-coils-set-of-6\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eRK Tunes Charge Pipe\u003c\/li\u003e\n\u003cli\u003eRK Tunes Crank Hub (\u003ca href=\"https:\/\/www.rktunes.com\/products\/f8x-s55-crank-hub\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e600 WHP (+160 WHP over stock)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMHD Flex‑Fuel Kit (\u003ca href=\"https:\/\/www.rktunes.com\/products\/mhd-flexfuel-analyzer-kit-for-bmw-f80-f30-f22-f25-f40-n55-s55\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e700 WHP (+260 WHP over stock)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRK Tunes Upgraded Twin Turbos\u003c\/li\u003e\n\u003cli\u003eRK Tunes Low‑Pressure Fuel Pump\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noopener\" href=\"https:\/\/www.rktunes.com\/products\/340i-fuel-pump-upgrade?_pos=1\u0026amp;_sid=c562eda22\u0026amp;_ss=r\" target=\"_blank\"\u003e(Link to product)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e800 WHP (+360 WHP over stock)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUpgraded Charge Cooler\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e1000+ WHP (+560+ WHP over stock)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFully Built Engine\u003c\/li\u003e\n\u003cli\u003eFull Low‑Pressure Fuel Pump System (2+)\u003c\/li\u003e\n\u003cli\u003eUpgraded DCT Clutches \/ Manual Clutch\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNotes (S55):\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ Spark plugs every 10 k miles (NGK 97506).\u003c\/li\u003e\n\u003cli\u003e✅ Ignition coils every 50 k miles.\u003c\/li\u003e\n\u003cli\u003e✅ New factory direct injectors suggested every 70 k miles.\u003c\/li\u003e\n\u003cli\u003e✅ Hi‑Flow Catted Downpipes recommended.\u003c\/li\u003e\n\u003cli\u003e✅ Charge pipes get brittle and break randomly.\u003c\/li\u003e\n\u003cli\u003e✅ Manual cars require upgraded clutch as WHP increases.\u003c\/li\u003e\n\u003cli\u003e✅ Port Injection \u0026gt; DI‑only for high WHP.\u003c\/li\u003e\n\u003cli\u003e✅ RK‑Tunes parts recommended but not mandatory.\u003c\/li\u003e\n\u003cli\u003e✅ We NEVER tune with methanol injection.\u003c\/li\u003e\n\u003cli\u003e✅ See Direct Injection vs DI + Port Injection breakdown for all cars.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e✅ Spark Plug Gaps:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e≤ 550 WHP: .025 \u003c\/li\u003e\n\u003cli\u003e551–700 WHP: .022 \u003c\/li\u003e\n\u003cli\u003e701–850 WHP: .020 \u003c\/li\u003e\n\u003cli\u003e851–1000 WHP: .018 \u003c\/li\u003e\n\u003cli\u003e1000+ WHP: .016\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RK-Tunes","offers":[{"title":"Stock turbo \/ No \/ none","offer_id":40547759259753,"sku":"TUNE-S55-STOCK-TURBO-\/-NO-\/-N","price":1199.99,"currency_code":"USD","in_stock":true},{"title":"Stock turbo \/ No \/ 1 map + $200","offer_id":40547759292521,"sku":"TUNE-S55-STOCK-TURBO-\/-NO-\/-1","price":1399.99,"currency_code":"USD","in_stock":true},{"title":"Stock turbo \/ No \/ 2 maps +$400","offer_id":40547759325289,"sku":"TUNE-S55-STOCK-TURBO-\/-NO-\/-2","price":1499.99,"currency_code":"USD","in_stock":true},{"title":"Stock turbo \/ No \/ 3 maps +$600","offer_id":40547759358057,"sku":"TUNE-S55-STOCK-TURBO-\/-NO-\/-3","price":1899.99,"currency_code":"USD","in_stock":true},{"title":"Stock turbo \/ Yes +$200 \/ none","offer_id":40547759390825,"sku":"TUNE-S55-STOCK-TURBO-\/-YES-+$","price":1399.99,"currency_code":"USD","in_stock":true},{"title":"Stock turbo \/ Yes +$200 \/ 1 map + $200","offer_id":40547759423593,"sku":"TUNE-S55-STOCK-TURBO-\/-YES-+$-2","price":1599.99,"currency_code":"USD","in_stock":true},{"title":"Stock turbo \/ Yes +$200 \/ 2 maps +$400","offer_id":40547759456361,"sku":"TUNE-S55-STOCK-TURBO-\/-YES-+$-3","price":1699.99,"currency_code":"USD","in_stock":true},{"title":"Stock turbo \/ Yes +$200 \/ 3 maps +$600","offer_id":40547759489129,"sku":"TUNE-S55-STOCK-TURBO-\/-YES-+$-4","price":2099.99,"currency_code":"USD","in_stock":true},{"title":"Twin upgraded turbos (Pure\/Vargas\/etc.) +$250 \/ No \/ none","offer_id":40547759521897,"sku":"TUNE-S55-TWIN-UPGRADED-TURBOS","price":1599.99,"currency_code":"USD","in_stock":true},{"title":"Twin upgraded turbos (Pure\/Vargas\/etc.) +$250 \/ No \/ 1 map + $200","offer_id":40547759554665,"sku":"TUNE-S55-TWIN-UPGRADED-TURBOS-2","price":1799.99,"currency_code":"USD","in_stock":true},{"title":"Twin upgraded turbos (Pure\/Vargas\/etc.) +$250 \/ No \/ 2 maps +$400","offer_id":40547759587433,"sku":"TUNE-S55-TWIN-UPGRADED-TURBOS-3","price":1899.99,"currency_code":"USD","in_stock":true},{"title":"Twin upgraded turbos (Pure\/Vargas\/etc.) +$250 \/ No \/ 3 maps +$600","offer_id":40547759620201,"sku":"TUNE-S55-TWIN-UPGRADED-TURBOS-4","price":2099.99,"currency_code":"USD","in_stock":true},{"title":"Twin upgraded turbos (Pure\/Vargas\/etc.) +$250 \/ Yes +$200 \/ none","offer_id":40547759652969,"sku":"TUNE-S55-TWIN-UPGRADED-TURBOS-5","price":1699.99,"currency_code":"USD","in_stock":true},{"title":"Twin upgraded turbos (Pure\/Vargas\/etc.) +$250 \/ Yes +$200 \/ 1 map + $200","offer_id":40547759685737,"sku":"TUNE-S55-TWIN-UPGRADED-TURBOS-6","price":1899.99,"currency_code":"USD","in_stock":true},{"title":"Twin upgraded turbos (Pure\/Vargas\/etc.) +$250 \/ Yes +$200 \/ 2 maps +$400","offer_id":40547759718505,"sku":"TUNE-S55-TWIN-UPGRADED-TURBOS-7","price":2199.99,"currency_code":"USD","in_stock":true},{"title":"Twin upgraded turbos (Pure\/Vargas\/etc.) +$250 \/ Yes +$200 \/ 3 maps +$600","offer_id":40547759751273,"sku":"TUNE-S55-TWIN-UPGRADED-TURBOS-8","price":2399.99,"currency_code":"USD","in_stock":true},{"title":"Single turbo +$300 \/ No \/ none","offer_id":40547759784041,"sku":"TUNE-S55-SINGLE-TURBO-+$300-\/","price":1599.99,"currency_code":"USD","in_stock":true},{"title":"Single turbo +$300 \/ No \/ 1 map + $200","offer_id":40547759816809,"sku":"TUNE-S55-SINGLE-TURBO-+$300-\/-2","price":1799.99,"currency_code":"USD","in_stock":true},{"title":"Single turbo +$300 \/ No \/ 2 maps +$400","offer_id":40547759849577,"sku":"TUNE-S55-SINGLE-TURBO-+$300-\/-3","price":1899.99,"currency_code":"USD","in_stock":true},{"title":"Single turbo +$300 \/ No \/ 3 maps +$600","offer_id":40547759882345,"sku":"TUNE-S55-SINGLE-TURBO-+$300-\/-4","price":2099.99,"currency_code":"USD","in_stock":true},{"title":"Single turbo +$300 \/ Yes +$200 \/ none","offer_id":40547759915113,"sku":"TUNE-S55-SINGLE-TURBO-+$300-\/-5","price":1699.99,"currency_code":"USD","in_stock":true},{"title":"Single turbo +$300 \/ Yes +$200 \/ 1 map + $200","offer_id":40547759947881,"sku":"TUNE-S55-SINGLE-TURBO-+$300-\/-6","price":1899.99,"currency_code":"USD","in_stock":true},{"title":"Single turbo +$300 \/ Yes +$200 \/ 2 maps +$400","offer_id":40547759980649,"sku":"TUNE-S55-SINGLE-TURBO-+$300-\/-7","price":2199.99,"currency_code":"USD","in_stock":true},{"title":"Single turbo +$300 \/ Yes +$200 \/ 3 maps +$600","offer_id":40547760013417,"sku":"TUNE-S55-SINGLE-TURBO-+$300-\/-8","price":2399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1159\/4362\/files\/f80m3dyno.png?v=1758739172"},{"product_id":"performance-tune-for-s63","title":"Performance tune for S63 - F10 M5 M6 F95 X5M X6M F90 M5 M8","description":"\u003cp\u003e\u003cspan\u003eThis is our tried and tested tune for the S63 platform. These tunes were designed on a Dynojet dyno and tested in the real world!  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePLEASE NOTE: 2021+ MODEL YEAR CARS REQUIRE AN ECU BENCH UNLOCK BY FEMTO BEFORE TUNING IS POSSIBLE. FOR MORE INFORMATION, PLEASE CLICK \u003ca href=\"https:\/\/www.rktunes.com\/products\/femto-unlock-06-2020-production-date-bmw-supra-dme-unlock?_pos=1\u0026amp;_sid=914b1269d\u0026amp;_ss=r\" title=\"2021+ ECU unlock\"\u003e\u003cspan data-darkreader-inline-color=\"\" style=\"text-decoration: underline; color: #1d89ff;\"\u003eHERE\u003c\/span\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp\u003eALL TUNING IS DONE VIA \u003cspan data-darkreader-inline-color=\"\" style=\"color: rgb(255, 42, 0);\"\u003eMHD ONLY\u003c\/span\u003e. THIS REQUIRES YOU TO HAVE AN ENET OBD2 ADAPTER, AND THE CORRECT LICENSES FROM THE RESPECTIVE TUNING PLATFORM. IF YOU HAVE ANY QUESTIONS, PLEASE CONTACT US BEFORE PURCHASING.\u003ca href=\"https:\/\/www.rktunes.com\/blogs\/build-breakdowns\/s58-engine\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cblockquote\u003e\n\u003cp\u003eFor more info on how the tuning process works, be sure to check our tuning tech talk \u003ca href=\"https:\/\/www.rktunes.com\/blogs\/tuning-tech-talk\" rel=\"noopener\" target=\"_blank\"\u003eHERE\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eSupported vehicles:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eF10 M5\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eF1x M6\u003c\/li\u003e\n\u003cli\u003eF85 X5M\u003c\/li\u003e\n\u003cli\u003eF86 X6M\u003c\/li\u003e\n\u003cli\u003eF90 M5\u003c\/li\u003e\n\u003cli\u003eF9x M8\u003c\/li\u003e\n\u003cli\u003eF9x X5M X6M\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e🚘 Horsepower Gains\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eStock WHP:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e530\u003c\/p\u003e\n\u003ch3\u003e640 WHP (+110 WHP over stock)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRK Tunes Front Mount Intake (\u003ca href=\"https:\/\/www.rktunes.com\/products\/f-series-m5-m6-front-mount-intakes\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eMHD Super License (\u003ca href=\"https:\/\/www.rktunes.com\/products\/mhd-super-license-for-bmw-f-and-g-series-n55-b58-s55-s58-s63?variant=41602406449257\" rel=\"noopener\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eMHD Wireless Flash Adapter (\u003ca href=\"https:\/\/www.rktunes.com\/products\/mhd-wireless-obdii-wifi-flash-adapter-f-and-g-series\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eNGK 97506 spark plugs (\u003ca href=\"https:\/\/www.rktunes.com\/products\/ngk-97506-pre-gapped-spark-plug-set\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eRK Tunes High Output Ignition Coil Packs\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.rktunes.com\/products\/rktunes-s55-coilpacks?_pos=2\u0026amp;_sid=8c87ece96\u0026amp;_ss=r\" rel=\"noopener\" target=\"_blank\"\u003e(Link to product)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eRK Tunes Custom tune\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.rktunes.com\/products\/performance-tune-for-s63?_pos=6\u0026amp;_sid=eec75bb47\u0026amp;_ss=r\" rel=\"noopener\" target=\"_blank\"\u003e(Link to product)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e675 WHP (+145 WHP over stock)\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eAll above PLUS below:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHi-Flow Catted Downpipes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e720 WHP (+190 WHP over stock)\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eAll above PLUS below:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eE30 Fuel Blend\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e830 WHP (+300 WHP over stock)\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eAll above PLUS below:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRK Tunes Dual Ball Bearing Turbos\u003c\/li\u003e\n\u003cli\u003eCharge Air Coolers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e1000 WHP (+470 WHP over stock)\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eAll above PLUS below:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUpgraded Intake Manifolds\u003c\/li\u003e\n\u003cli\u003eMOTIV Reflex (\u003ca href=\"https:\/\/www.rktunes.com\/products\/motiv-reflex-advanced-i-o-integration-bmw-toyota-supra\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eFull Low-Pressure Fuel Pump System\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNotes (S63 F10\/F12):\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ Spark plugs every 10k miles (NGK 97506).\u003c\/li\u003e\n\u003cli\u003e✅ Ignition coils every 50K miles.\u003c\/li\u003e\n\u003cli\u003e✅ New factory direct injectors suggested every 70K miles.\u003c\/li\u003e\n\u003cli\u003e✅ Hi‑Flow Catted Downpipes recommended.\u003c\/li\u003e\n\u003cli\u003e✅ Charge pipes get brittle and break randomly.\u003c\/li\u003e\n\u003cli\u003e✅ Manual cars require upgraded clutch at higher WHP.\u003c\/li\u003e\n\u003cli\u003e✅ Port Injection \u0026gt; DI‑only for high WHP builds.\u003c\/li\u003e\n\u003cli\u003e✅ RK‑Tunes parts recommended but not mandatory.\u003c\/li\u003e\n\u003cli\u003e✅ We NEVER tune with methanol injection.\u003c\/li\u003e\n\u003cli\u003e✅ See Direct Injection vs Direct Injection + Port Injection breakdown for all cars.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e✅ Spark Plug Gaps:\u003c\/strong\u003e\u003cbr\u003e– ≤550 WHP: .030\u003cbr\u003e– 551–700 WHP: .022\u003cbr\u003e– 701–850 WHP: .022\u003cbr\u003e– 851–1000 WHP: .018\u003cbr\u003e– 1000+ WHP: .016\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RK-Tunes","offers":[{"title":"0 additional maps (comes with a 91\/93 octane tune) \/ Stock turbo","offer_id":41090694414441,"sku":"TUNE-S63-0-ADDITIONAL-MAPS-(C","price":1199.99,"currency_code":"USD","in_stock":true},{"title":"0 additional maps (comes with a 91\/93 octane tune) \/ Upgraded turbo","offer_id":43045969789033,"sku":"TUNE-S63-TURBO","price":1599.99,"currency_code":"USD","in_stock":true},{"title":"1 map \/ Stock turbo","offer_id":41090694447209,"sku":"TUNE-S63-1-MAP","price":1399.99,"currency_code":"USD","in_stock":true},{"title":"1 map \/ Upgraded turbo","offer_id":43045969821801,"sku":"TUNE-S63-1-MAP-TURBO","price":1799.99,"currency_code":"USD","in_stock":true},{"title":"2 maps \/ Stock turbo","offer_id":41090694479977,"sku":"TUNE-S63-2-MAPS","price":1499.99,"currency_code":"USD","in_stock":true},{"title":"2 maps \/ Upgraded turbo","offer_id":43045969854569,"sku":"TUNE-S63-2-MAPS-TURBO","price":1999.99,"currency_code":"USD","in_stock":true},{"title":"3 maps \/ Stock turbo","offer_id":41090694512745,"sku":"TUNE-S63-3-MAPS","price":1899.99,"currency_code":"USD","in_stock":true},{"title":"3 maps \/ Upgraded turbo","offer_id":43045969887337,"sku":"TUNE-S63-3-MAPS-TURBO","price":2199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1159\/4362\/files\/s63tune.png?v=1758739052"},{"product_id":"performance-tune-for-s58","title":"Performance tune for S58 - G80 G82 G83 M3 M4 X3M X4M","description":"\u003cp\u003e\u003cstrong\u003ePLEASE NOTE: 2021+ MODEL YEAR CARS REQUIRE AN ECU BENCH UNLOCK BY FEMTO BEFORE TUNING IS POSSIBLE. FOR MORE INFORMATION, PLEASE CLICK \u003ca href=\"https:\/\/www.rktunes.com\/products\/femto-unlock-06-2020-production-date-bmw-supra-dme-unlock?_pos=1\u0026amp;_sid=914b1269d\u0026amp;_ss=r\" title=\"2021+ ECU unlock\"\u003e\u003cspan data-darkreader-inline-color=\"\" style=\"text-decoration: underline; color: #1d89ff;\"\u003eHERE\u003c\/span\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp\u003eALL TUNING IS DONE VIA \u003cspan data-darkreader-inline-color=\"\" style=\"color: rgb(255, 42, 0);\"\u003eMHD ONLY\u003c\/span\u003e. THIS REQUIRES YOU TO HAVE AN ENET OBD2 ADAPTER, AND THE CORRECT LICENSES FROM THE RESPECTIVE TUNING PLATFORM. IF YOU HAVE ANY QUESTIONS, PLEASE CONTACT US BEFORE PURCHASING.\u003ca href=\"https:\/\/www.rktunes.com\/blogs\/build-breakdowns\/s58-engine\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cblockquote\u003e\n\u003cp\u003eFor more info on how the tuning process works, be sure to check our tuning tech talk \u003ca href=\"https:\/\/www.rktunes.com\/blogs\/tuning-tech-talk\" rel=\"noopener\" target=\"_blank\"\u003eHERE\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003e🚘 Horsepower Gains\u003cbr\u003e\u003cbr\u003e\u003cstrong style=\"font-size: 0.875rem;\"\u003eStock WHP:\u003c\/strong\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e498\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003ch3\u003e570 WHP (+72 WHP over stock)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRK Tunes Front Mount Intake\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.rktunes.com\/products\/front-mount-intakes-for-2020-g80-g82-m3-m4?_pos=1\u0026amp;_sid=c103045db\u0026amp;_ss=r\" rel=\"noopener\" target=\"_blank\"\u003e(G8x)\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eor\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.rktunes.com\/products\/x3m-x4m-front-mount-intakes?_pos=1\u0026amp;_sid=37327eaf6\u0026amp;_ss=r\" rel=\"noopener\" target=\"_blank\"\u003e(X3\/4M)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eCustom Tune from RK Tunes (\u003ca href=\"https:\/\/www.rktunes.com\/products\/performance-tune-for-s58\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eMHD Super License (\u003ca rel=\"noopener\" href=\"https:\/\/www.rktunes.com\/products\/mhd-super-license-for-bmw-f-and-g-series-n55-b58-s55-s58-s63?variant=41602406416489\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eMHD Wireless Flash Adapter (\u003ca href=\"https:\/\/www.rktunes.com\/products\/mhd-wireless-obdii-wifi-flash-adapter-f-and-g-series\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eNGK 96206 spark plugs (\u003ca href=\"https:\/\/www.rktunes.com\/products\/ngk-96206-pre-gapped-spark-plug-set-for-bmw-g80-s58-engine\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eRK Tunes High‑Output Ignition Coil Packs (\u003ca href=\"https:\/\/www.rktunes.com\/products\/rktunes-b-series-ignition-coils-set-of-6\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003e2021 or newer? You need a Femto unlock!\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.rktunes.com\/products\/femto-unlock-06-2020-production-date-bmw-supra-dme-unlock?_pos=1\u0026amp;_sid=c5d5bd34d\u0026amp;_ss=r\" rel=\"noopener\" target=\"_blank\"\u003e(Link to product)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e600 WHP (+102 WHP)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAll above +\u003c\/li\u003e\n\u003cli\u003eHi‑Flow Catted Downpipes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e710-745 WHP (+212 \/ +247 WHP)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAll above +\u003c\/li\u003e\n\u003cli\u003eMHD Flex‑Fuel Kit (\u003ca href=\"https:\/\/www.rktunes.com\/products\/mhd-flexfuel-analyzer-kit-for-bmw-f80-f30-f22-f25-f40-n55-s55\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eE40 Fuel Blend\u003cbr\u003e*710whp on stock exhaust 745whp with high flow down pipes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e765 WHP (+267 WHP)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAll above +\u003c\/li\u003e\n\u003cli\u003eMOTIV ReFlex (\u003ca href=\"https:\/\/www.rktunes.com\/products\/motiv-reflex-advanced-i-o-integration-bmw-toyota-supra\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003ePort Injection w\/ 750 cc+ Injectors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e870 WHP (+372 WHP)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAll above +\u003c\/li\u003e\n\u003cli\u003eRK Tunes DVB Upgraded Twin Turbos\/Single Turbo (68–70 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e900 WHP (+402 WHP)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAll above +\u003c\/li\u003e\n\u003cli\u003eFull Low‑Pressure Fuel Pump System\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e1300 WHP (+802 WHP)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAll above +\u003c\/li\u003e\n\u003cli\u003eSingle Turbo Full‑Frame (72–75 mm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e1500 WHP (+1002 WHP)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAll above +\u003c\/li\u003e\n\u003cli\u003eSingle Turbo Full‑Frame (80 mm+) \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNotes (S58):\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ Spark plugs every 10 k miles (NGK 96206).\u003c\/li\u003e\n\u003cli\u003e✅ Ignition coils every 50 k miles.\u003c\/li\u003e\n\u003cli\u003e✅ Replace injectors ~70 k miles.\u003c\/li\u003e\n\u003cli\u003e✅ Hi‑Flow downpipes recommended.\u003c\/li\u003e\n\u003cli\u003e✅ Charge pipes brittle at high WHP.\u003c\/li\u003e\n\u003cli\u003e✅ Manual cars need clutch upgrade at high WHP.\u003c\/li\u003e\n\u003cli\u003e✅ Port Injection \u0026gt; DI‑only at high outputs.\u003c\/li\u003e\n\u003cli\u003e✅ RK‑Tunes parts recommended but not mandatory.\u003c\/li\u003e\n\u003cli\u003e✅ No meth injection used.\u003c\/li\u003e\n\u003cli\u003e✅ See DI vs DI+Port Injection breakdown.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e✅ Spark Plug Gaps:\u003c\/strong\u003e\u003cbr\u003e– ≤ 550 WHP: .030\u003cbr\u003e– 551–700 WHP: .025\u003cbr\u003e– 701–850 WHP: .022\u003cbr\u003e– 851–1000 WHP: .018\u003cbr\u003e– 1000+ WHP: .016\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"RK-Tunes","offers":[{"title":"No \/ Stock \/ no additional maps","offer_id":40593214111849,"sku":"TUNE-S58-NO-\/-STOCK-\/-NO-ADDI","price":1199.99,"currency_code":"USD","in_stock":true},{"title":"No \/ Stock \/ 1 map +$200","offer_id":40593214144617,"sku":"TUNE-S58-NO-\/-STOCK-\/-1-MAP-+","price":1399.99,"currency_code":"USD","in_stock":true},{"title":"No \/ Stock \/ 2 maps +$400","offer_id":40593214177385,"sku":"TUNE-S58-NO-\/-STOCK-\/-2-MAPS-","price":1499.99,"currency_code":"USD","in_stock":true},{"title":"No \/ Stock \/ 3 maps +$600","offer_id":40593214210153,"sku":"TUNE-S58-NO-\/-STOCK-\/-3-MAPS-","price":1899.99,"currency_code":"USD","in_stock":true},{"title":"No \/ Upgraded \/ Hybrids \/ Single +$200 \/ no additional maps","offer_id":40593214242921,"sku":"TUNE-S58-NO-\/-UPGRADED-\/-HYBR","price":1599.99,"currency_code":"USD","in_stock":true},{"title":"No \/ Upgraded \/ Hybrids \/ Single +$200 \/ 1 map +$200","offer_id":40593214275689,"sku":"TUNE-S58-NO-\/-UPGRADED-\/-HYBR-2","price":1799.99,"currency_code":"USD","in_stock":true},{"title":"No \/ Upgraded \/ Hybrids \/ Single +$200 \/ 2 maps +$400","offer_id":40593214308457,"sku":"TUNE-S58-NO-\/-UPGRADED-\/-HYBR-3","price":1899.99,"currency_code":"USD","in_stock":true},{"title":"No \/ Upgraded \/ Hybrids \/ Single +$200 \/ 3 maps +$600","offer_id":40593214341225,"sku":"TUNE-S58-NO-\/-UPGRADED-\/-HYBR-4","price":2099.99,"currency_code":"USD","in_stock":true},{"title":"Yes +$200 \/ Stock \/ no additional maps","offer_id":40593214373993,"sku":"TUNE-S58-YES-+$200-\/-STOCK-\/-","price":1399.99,"currency_code":"USD","in_stock":true},{"title":"Yes +$200 \/ Stock \/ 1 map +$200","offer_id":40593214406761,"sku":"TUNE-S58-YES-+$200-\/-STOCK-\/--2","price":1599.99,"currency_code":"USD","in_stock":true},{"title":"Yes +$200 \/ Stock \/ 2 maps +$400","offer_id":40593214439529,"sku":"TUNE-S58-YES-+$200-\/-STOCK-\/--3","price":1699.99,"currency_code":"USD","in_stock":true},{"title":"Yes +$200 \/ Stock \/ 3 maps +$600","offer_id":40593214472297,"sku":"TUNE-S58-YES-+$200-\/-STOCK-\/--4","price":2099.99,"currency_code":"USD","in_stock":true},{"title":"Yes +$200 \/ Upgraded \/ Hybrids \/ Single +$200 \/ no additional maps","offer_id":40593214505065,"sku":"TUNE-S58-YES-+$200-\/-UPGRADED","price":1999.99,"currency_code":"USD","in_stock":true},{"title":"Yes +$200 \/ Upgraded \/ Hybrids \/ Single +$200 \/ 1 map +$200","offer_id":40593214537833,"sku":"TUNE-S58-YES-+$200-\/-UPGRADED-2","price":2199.99,"currency_code":"USD","in_stock":true},{"title":"Yes +$200 \/ Upgraded \/ Hybrids \/ Single +$200 \/ 2 maps +$400","offer_id":40593214570601,"sku":"TUNE-S58-YES-+$200-\/-UPGRADED-3","price":2399.99,"currency_code":"USD","in_stock":true},{"title":"Yes +$200 \/ Upgraded \/ Hybrids \/ Single +$200 \/ 3 maps +$600","offer_id":40593214603369,"sku":"TUNE-S58-YES-+$200-\/-UPGRADED-4","price":2599.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1159\/4362\/files\/g80m3.png?v=1758739345"},{"product_id":"performance-tune-for-n63-tu-non-tu","title":"Performance tune for N63 TU - 550i M550i 650i 750i M850i x50i","description":"\u003cp\u003e\u003cspan\u003eThis is our tried and tested tune for the S63 platform. These tunes were designed on a Dynojet dyno and tested in the real world! \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003ePLEASE NOTE\u003c\/span\u003e: 2021+ MODEL YEAR CARS REQUIRE AN ECU BENCH UNLOCK BEFORE TUNING IS POSSIBLE. FOR MORE INFORMATION PLEASE CLICK \u003ca title=\"2021+ ECU unlock\" href=\"https:\/\/www.rktunes.com\/products\/femto-unlock-06-2020-production-date-bmw-supra-dme-unlock?_pos=1\u0026amp;_sid=914b1269d\u0026amp;_ss=r\"\u003e\u003cspan style=\"text-decoration: underline; color: #1d89ff;\" data-darkreader-inline-color=\"\"\u003eHERE\u003c\/span\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eALL REMOTE TUNING DONE VIA \u003cspan style=\"color: rgb(255, 42, 0); text-decoration: underline;\" data-darkreader-inline-color=\"\"\u003eMHD ONLY.\u003c\/span\u003e THIS REQUIRES YOU TO HAVE AN ENET ADAPTER AND THE CORRECT LICENSING FOR YOUR VEHICLE. PLEASE CONTACT US IF YOU HAVE ANY QUESTIONS ON THE PROCESS\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eSupported vehicles:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"text-decoration: underline;\"\u003e\u003c\/span\u003eF10 550i\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eF1x 650i\u003c\/li\u003e\n\u003cli\u003eF01 750i\u003c\/li\u003e\n\u003cli\u003eF15 X5 50i\u003c\/li\u003e\n\u003cli\u003eF16 X6 50i\u003c\/li\u003e\n\u003cli\u003eG30 M550i\u003c\/li\u003e\n\u003cli\u003eG01 750i\u003c\/li\u003e\n\u003cli\u003eG05 X5 M50i\u003c\/li\u003e\n\u003cli\u003eG06 X6 M50i\u003c\/li\u003e\n\u003cli\u003eG07 X7 M50i\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RK-Tunes","offers":[{"title":"no","offer_id":40566507077737,"sku":"TUNE-N63-NO","price":1199.99,"currency_code":"USD","in_stock":true},{"title":"yes +$200","offer_id":40566507110505,"sku":"TUNE-N63-YES-+$200","price":1399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1159\/4362\/files\/ChatGPTImageSep24_2025_03_24_43PM.png?v=1758744476"},{"product_id":"performance-tune-for-e-f-series-n55","title":"Performance tune for E+F series N55 - 135i M235i M2 335i 435i 535i 640i xdrive35i","description":"\u003ch2\u003eThis is our custom tune for N55-powered vehicles!\u003c\/h2\u003e\n\u003ch4\u003eTuning timeframe :\u003cbr\u003e\n\u003c\/h4\u003e\n\u003cp\u003eUnlimited Remote Tune Revisions via email (6-Month Access) or One-Time Live Remote \u003cbr\u003eTuning Session. \u003cstrong\u003eFor more information, \u003ca rel=\"noopener\" href=\"https:\/\/www.rktunes.com\/blogs\/tuning-tech-talk\/tuning-options-revisions\" target=\"_blank\"\u003eCLICK HERE\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003eALL TUNING IS DONE VIA \u003cspan style=\"color: rgb(255, 42, 0);\"\u003eMHD ONLY\u003c\/span\u003e. Features such as burble and antilag (if applicable) will be adjustable via MHD with our tune!  \u003cstrong\u003eFor more info on MHD, CLICK HERE\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDirect Injection VS DI + Port Injection Comparison. \u003cstrong\u003eFor more information \u003ca rel=\"noopener\" href=\"https:\/\/www.rktunes.com\/blogs\/tuning-tech-talk\/port-injection-vs-direct-injection\" target=\"_blank\"\u003eCLICK HERE\u003c\/a\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eEstimated power gains below are based on previous tuned cars. Similar builds can net similar gains (May vary, depending on conditions, etc.)\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cdiv class=\"article_content clearfix\"\u003e\n\u003cp\u003e\u003cstrong\u003eStock WHP:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e310\u003c\/p\u003e\n\u003ch3\u003e360 WHP (+50 WHP over stock)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMHD Super License (\u003ca rel=\"noopener\" href=\"https:\/\/www.rktunes.com\/products\/mhd-super-license-for-bmw-f-and-g-series-n55-b58-s55-s58-s63?variant=41602406285417\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eMHD Wireless Flash Adapter (\u003ca href=\"https:\/\/www.rktunes.com\/products\/mhd-wireless-obdii-wifi-flash-adapter-f-and-g-series\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eNGK 97506 spark plugs (\u003ca href=\"https:\/\/www.rktunes.com\/products\/ngk-97506-pre-gapped-spark-plug-set\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eRK Tunes Front Mount Intake (\u003ca href=\"https:\/\/www.rktunes.com\/products\/f-series-n55-front-mount-intake\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eUpgraded Intercooler\u003c\/li\u003e\n\u003cli\u003eRK Tunes High Output Ignition Coil Packs\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.rktunes.com\/products\/rktunes-s55-coilpacks?_pos=2\u0026amp;_sid=e32a23a92\u0026amp;_ss=r\"\u003e(Link to product)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eRK Tunes Charge Pipe (\u003ca href=\"https:\/\/www.rktunes.com\/products\/e-series-n55-chargepipe\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e400 WHP (+90 WHP over stock)\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eAll above PLUS below:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHi-Flow Catted Downpipe\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e510 WHP (+200 WHP over stock)\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eAll above PLUS below:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eE30 Fuel Blend\u003c\/li\u003e\n\u003cli\u003eMHD Flex-Fuel Kit (\u003ca href=\"https:\/\/www.rktunes.com\/products\/mhd-flexfuel-analyzer-kit-for-bmw-f80-f30-f22-f25-f40-n55-s55\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eUpgraded HPFP (TU\/DS2.5)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e600 WHP (+290 WHP over stock)\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eAll above PLUS below:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRK Tunes Dual Ball Bearing Turbo\u003c\/li\u003e\n\u003cli\u003ePort Injection with 750cc+ Injectors\u003c\/li\u003e\n\u003cli\u003eMOTIV Reflex (\u003ca href=\"https:\/\/www.rktunes.com\/products\/motiv-reflex-advanced-i-o-integration-bmw-toyota-supra\" target=\"_blank\"\u003eLink to product\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eRK Tunes Low-Pressure Fuel Pump\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e750 WHP (+440 WHP over stock)\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eAll above PLUS below:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFull-Frame Turbo (6266+)\u003c\/li\u003e\n\u003cli\u003eRK Tunes Crank Hub\u003c\/li\u003e\n\u003cli\u003eStage 1 Transmission \/ Upgraded Clutch (manual)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e850–900 WHP (+540–590 WHP over stock)\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eAll above PLUS below:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFull-Frame Turbo (6466)\u003c\/li\u003e\n\u003cli\u003eCharge Air Cooler \/ Upgraded Intake Manifold\u003c\/li\u003e\n\u003cli\u003eStage 2 or Better Transmission\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e950–1100+ WHP (+640–790 WHP over stock)\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eAll above PLUS below:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFull-Frame Turbo (68–70mm+)\u003c\/li\u003e\n\u003cli\u003eFully Built Engine\u003c\/li\u003e\n\u003cli\u003eFull Low-Pressure Fuel Pump System (2+)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch3\u003eGeneral Information:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e Spark plugs every 10k miles (NGK 97506)\u003c\/li\u003e\n\u003cli\u003e Ignition coils every 50K miles\u003c\/li\u003e\n\u003cli\u003e New factory direct injectors suggested every 70K miles\u003c\/li\u003e\n\u003cli\u003e Hi-Flow Catted Downpipes recommended\u003c\/li\u003e\n\u003cli\u003e Charge pipes get brittle and break randomly\u003c\/li\u003e\n\u003cli\u003e Manual cars require an upgraded clutch as WHP increases\u003c\/li\u003e\n\u003cli\u003e Port Injection \u0026gt; DI-only for high WHP\u003c\/li\u003e\n\u003cli\u003e RK-Tunes parts recommended but not mandatory.\u003c\/li\u003e\n\u003cli\u003e We \u003cstrong\u003eNEVER\u003c\/strong\u003e tune with methanol injection\u003c\/li\u003e\n\u003cli\u003e See Direct Injection vs Direct Injection + Port Injection breakdown for all cars\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e Spark Plug Gaps:\u003c\/strong\u003e\u003cbr\u003e- ≤550 WHP: .025\u003cbr\u003e- 551–700 WHP: .022\u003cbr\u003e- 701–850 WHP: .020\u003cbr\u003e- 851–1000 WHP: .018\u003cbr\u003e- 1000+ WHP: .016\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eStill have questions? Check our Tuning Tech Talk and Build Suggestions, which can be found at the top of the page.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eSupported Vehicles: \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2011-2013 E9x 335i\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e2011-2013 E8x 135i\u003c\/li\u003e\n\u003cli\u003e2011-2013 E70 X5 35i\u003c\/li\u003e\n\u003cli\u003eF10 535i\u003c\/li\u003e\n\u003cli\u003eF0x 640i\u003c\/li\u003e\n\u003cli\u003eF15 X5 35i\u003c\/li\u003e\n\u003cli\u003eF16 X6 35i\u003c\/li\u003e\n\u003cli\u003eF3x 335i\/435i\u003c\/li\u003e\n\u003cli\u003eF22 M235i 235i\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e2015-2018 F87 M2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eVehicle not listed? Email us!\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"RK-Tunes","offers":[{"title":"STOCK TURBO \/ No \/ No","offer_id":40560414523497,"sku":"TUNE-N55-STOCK-TURBO-","price":999.99,"currency_code":"USD","in_stock":true},{"title":"STOCK TURBO \/ No \/ Yes +$200","offer_id":40560414556265,"sku":"TUNE-N55-STOCK-TURBO-\/-2","price":1199.99,"currency_code":"USD","in_stock":true},{"title":"STOCK TURBO \/ Yes + $200 \/ No","offer_id":40560414589033,"sku":"TUNE-N55-STOCK-TURBO-\/-3","price":1199.99,"currency_code":"USD","in_stock":true},{"title":"STOCK TURBO \/ Yes + $200 \/ Yes +$200","offer_id":40560414621801,"sku":"TUNE-N55-STOCK-TURBO-\/-4","price":1399.99,"currency_code":"USD","in_stock":true},{"title":"UPGRADED TURBO or single turbo \/ No \/ No","offer_id":40560414654569,"sku":"TUNE-N55-UPGRADED-TURBO---$75","price":1399.99,"currency_code":"USD","in_stock":true},{"title":"UPGRADED TURBO or single turbo \/ No \/ Yes +$200","offer_id":40560414687337,"sku":"TUNE-N55-UPGRADED-TURBO---$75-2","price":1599.99,"currency_code":"USD","in_stock":true},{"title":"UPGRADED TURBO or single turbo \/ Yes + $200 \/ No","offer_id":40560414720105,"sku":"TUNE-N55-UPGRADED-TURBO---$75-3","price":1599.99,"currency_code":"USD","in_stock":true},{"title":"UPGRADED TURBO or single turbo \/ Yes + $200 \/ Yes +$200","offer_id":40560414752873,"sku":"TUNE-N55-UPGRADED-TURBO---$75-4","price":1799.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1159\/4362\/files\/ChatGPTImageSep24_2025_03_20_46PM.png?v=1758741946"},{"product_id":"advanced-feature-e36-obd2-tune-1996-1999","title":"Advanced Feature E36 OBD2 Tune (1996-1999)","description":"\u003ch1\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003e- Flex fuel (Stock MS41 DME will auto-tune for ethanol content with our tune)\u003cbr\u003e- Rolling antilag\u003cbr\u003e- Two step \u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBIG power gains\u003c\/strong\u003e\u003cbr\u003e10-15 WHP on e85 over our 93 octane tune. 20-25 WHP total from tuning alone\u003cbr\u003e15-20 WHP on E85 over 91 octane tune. 20-25 WHP total from tuning alone\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eYoutube Video + install guide will be up around the time all kits ship.\u003cbr\u003eAll flex kits expected to ship 3\/18\/24\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003eINFO:\u003cbr data-mce-fragment=\"1\"\u003etwo step limiter \/ antilag- \u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003eWe include a switch with wiring to turn this on or off. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFlex fuel\u003c\/strong\u003e - \u003cbr\u003eFor flex fuel you must use Our flex fuel kit and Larger injectors. The flex fuel kit Comes with a gauge + fittings + sensor + line + wiring diagram. It does not come with a gauge mount kit. I put mine in my glove box. Injectors are rated at 340cc at 43psi. They will be enough for 290WHP+ on E85.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDW200 Fuel pump - Suggested\u003c\/strong\u003e. We suggest a new fuel pump + fuel filter. While a NEW OEM pump flows enough for a 250+WHP e36 on E85. Most of the time they are not new and are down on flow. The DW200 fuel pump we supply flows more then enough at 255 LPH and is E85 safe. Note you should NOT use a 320LPH or larger pump. It overpowers the OEM fuel pressure regulator and will lead to bad fueling.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eMAF - \u003c\/strong\u003eYou can use a stock 3\" maf or our 3.5\" maf. our 3.5\" maf comes with a housing + wiring harness. you can NOT use a 800\/803\/809. bosch no longer makes them and the aftermarket ones suck.\u003cbr\u003e\u003cstrong\u003e\u003cbr data-mce-fragment=\"1\"\u003eOur 3.5\" maf fits perfectly in place of a 800\/803\/809. If needed our 3.5\" throttle body boot (\u003ca href=\"https:\/\/www.rktunes.com\/collections\/all\/products\/e36-reinforced-silicone-throttle-body-boot\" data-mce-href=\"https:\/\/www.rktunes.com\/collections\/all\/products\/e36-reinforced-silicone-throttle-body-boot\"\u003eLINK HERE\u003c\/a\u003e) and our 3.5\" intake (\u003ca href=\"https:\/\/www.rktunes.com\/collections\/all\/products\/e36-reinforced-silicone-cold-air-intake-for-m3-320i-323i-325i-328i\" data-mce-href=\"https:\/\/www.rktunes.com\/collections\/all\/products\/e36-reinforced-silicone-cold-air-intake-for-m3-320i-323i-325i-328i\"\u003eLINK HERE\u003c\/a\u003e) a 3.5\" maf adds more power.\u003cbr\u003e\u003cbr\u003eYou can always add flex fuel later by buying the flex fuel kit + Injectors HERE for $750.\u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cbr\u003ePrice breakdown:\u003cbr data-mce-fragment=\"1\"\u003e$220 Tune upgrade\u003cbr data-mce-fragment=\"1\"\u003e$450 New tune base.\u003cbr\u003e$350 3.5\" maf with wiring\u003cbr\u003e$400 Flex fuel kit with hoses, lines, ethanol content gauge, wiring etc.\u003cbr\u003e$350 Bosch EV14 340cc injectors\u003cbr\u003e$100 DW200 fuel pump with submersible PTFE hose\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003eThese options above are on top of the normal tuning options. You must type in all your mods \/ requests in the box before adding to the cart so we can tune for your mods. We will always set idle \/ limiter etc to what we feel is best for your car. If you have specific requests just put them in the mod list box.\u003c\/strong\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe include a flash cable + software for all new tune orders. A windows laptop is required to flash the dme your self. If you want us to bench flash at our shop it please email us after ordering the tune and we will send you the needed forms.\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eTo do the \"upgrade tune\" option for $200. You must already have an RK-Tunes OBD2 tune order from us. We will search by name or email or phone number to find you old order. If we can not find it, We will email you before shipping your order. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFOR turbo tunes we will be updating turbo tunes in a few weeks.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"RK-Tunes","offers":[{"title":"Already have an RK-Tunes tune on the car \/ Stock maf \/ No flex fuel kit needed. Just want antilag + two step","offer_id":41136001450089,"sku":"TUNE-E36-ALREADY-HAVE-AN-RK-T","price":220.0,"currency_code":"USD","in_stock":false},{"title":"Already have an RK-Tunes tune on the car \/ Stock maf \/ Add flex fuel kit + New injectors.","offer_id":41136001482857,"sku":"TUNE-E36-ALREADY-HAVE-AN-RK-T-2","price":970.0,"currency_code":"USD","in_stock":false},{"title":"Already have an RK-Tunes tune on the car \/ Stock maf \/ Add flex fuel kit + New injectors + DW200 Fuel pump","offer_id":41136001515625,"sku":"TUNE-E36-ALREADY-HAVE-AN-RK-T-3","price":1079.0,"currency_code":"USD","in_stock":false},{"title":"Already have an RK-Tunes tune on the car \/ RK-Tunes 3.5\" maf \/ No flex fuel kit needed. Just want antilag + two step","offer_id":41136001548393,"sku":"TUNE-E36-ALREADY-HAVE-AN-RK-T-4","price":570.0,"currency_code":"USD","in_stock":false},{"title":"Already have an RK-Tunes tune on the car \/ RK-Tunes 3.5\" maf \/ Add flex fuel kit + New injectors.","offer_id":41136001581161,"sku":"TUNE-E36-ALREADY-HAVE-AN-RK-T-5","price":1320.0,"currency_code":"USD","in_stock":false},{"title":"Already have an RK-Tunes tune on the car \/ RK-Tunes 3.5\" maf \/ Add flex fuel kit + New injectors + DW200 Fuel pump","offer_id":41136001613929,"sku":"TUNE-E36-ALREADY-HAVE-AN-RK-T-6","price":1429.0,"currency_code":"USD","in_stock":false},{"title":"Need a whole new tune \/ Stock maf \/ No flex fuel kit needed. Just want antilag + two step","offer_id":41136001646697,"sku":"TUNE-E36-NEED-A-WHOLE-NEW-TUN","price":450.0,"currency_code":"USD","in_stock":false},{"title":"Need a whole new tune \/ Stock maf \/ Add flex fuel kit + New injectors.","offer_id":41136001679465,"sku":"TUNE-E36-NEED-A-WHOLE-NEW-TUN-2","price":1200.0,"currency_code":"USD","in_stock":false},{"title":"Need a whole new tune \/ Stock maf \/ Add flex fuel kit + New injectors + DW200 Fuel pump","offer_id":41136001712233,"sku":"TUNE-E36-NEED-A-WHOLE-NEW-TUN-3","price":1300.0,"currency_code":"USD","in_stock":false},{"title":"Need a whole new tune \/ RK-Tunes 3.5\" maf \/ No flex fuel kit needed. Just want antilag + two step","offer_id":41136001745001,"sku":"TUNE-E36-NEED-A-WHOLE-NEW-TUN-4","price":800.0,"currency_code":"USD","in_stock":false},{"title":"Need a whole new tune \/ RK-Tunes 3.5\" maf \/ Add flex fuel kit + New injectors.","offer_id":41136001777769,"sku":"TUNE-E36-NEED-A-WHOLE-NEW-TUN-5","price":1550.0,"currency_code":"USD","in_stock":false},{"title":"Need a whole new tune \/ RK-Tunes 3.5\" maf \/ Add flex fuel kit + New injectors + DW200 Fuel pump","offer_id":41136001810537,"sku":"TUNE-E36-NEED-A-WHOLE-NEW-TUN-6","price":1650.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1159\/4362\/files\/Untitled_720x720px.png?v=1709764366"}],"url":"https:\/\/www.rktunes.com\/collections\/bmw-tunes.oembed","provider":"RKTunes","version":"1.0","type":"link"}