This is our tried and tested tune for the 4 cylinder BMW platform (N20/B48) These tunes were designed on a Dynojet dyno and tested in the real world!
PLEASE NOTE: 2021+ MODEL YEAR CARS REQUIRE AN ECU BENCH UNLOCK BEFORE TUNING IS POSSIBLE. FOR MORE INFORMATION PLEASE CLICK HERE
We personally recommend using MHD for all tuning(requires purchase of MHD adapter and flasher license), but is not required if you are only using our OTS tune. Only required if you are seeking custom tuning/datalogging, you must also purchase the MHD monitor license as well.
If you do not want to use MHD, a Windows computer is required to utilize the RK-Tunes flash software.The device must have a ethernet port, or you must have a ENET to USB adapter. Check FAQ section for windows device recommendation.
⦁ Increased boost pressure
⦁ Top speed governor removed
⦁ Increased RPM rev limit
⦁ VANOS cam timing adjustment
⦁ Improved throttle response
⦁ Increased valvetronic valve lift
⦁ Ignition timing enhancements
⦁ Air/Fuel Ratio enhancements
- Fuel - Selectable fuel octane rating (91, 93)
- Burble - Emits flame and backfire when lifting off throttle. Only suggested for catless exhaust systems.
- 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
- Cold Start Delete - All BMW's have a cold start calibration to heat up the catalytic converters. If you're unhappy with the way your BMW 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.
PERFORMANCE SPECS BASED ON MODIFICATIONS:
50+ FT/LBS TQ
F3x 320i / 328i / 330i / 420i / 428i / 430i
- g2x 320i / 330i / 420i / 430i
- F2x 230i / 130i
- G3x 530i
- X3/X4 30i
- G05 X5 / X6 30i
- A90/A91 Toyota Supra 4 cyl model