G8x M3/M4 TUNE
PLEASE NOTE: BEFORE YOU TUNE YOUR G8X, YOU WILL NEED TO UNLOCK YOUR ECU VIA FEMTO. THIS REQUIRES YOUR ECU TO BE MAILED IN, AND THE PROCESS TAKES 1-2 WEEKS. LINK TO PRODUCT PAGE HERE:DME Unlock
This is our tried and tested tune for an with a S58. These tunes were designed on a Dynojet dyno and tested in the real world! A Windows computer is required to utilize the RK-Tunes flash software. 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 GAINS BASED ON MODIFICATIONS:
60 to 120+ WHP
60 to 120+ WTQ