The RK Autowerks Stage 1 M157 tune yields an additional ~120WHP and ~155WTQ safely for the moderate consumer looking to get more out of his or her M5.
This software is calibrated to the maximum capacity of the OEM hardware. This software should not be used with additional piggybacks of any kind as it is already fully tuned through ECU software directly.
- 700+ HP / 700 FT-LBS Of Torque
- Improved Throttle Response
- Smooth Power Delivery
- Stock-Like Driveability
- Intercooler Pump Optimized
- Speed Limiter Removed
- OBD II Emissions Compliant
- Safe, Proven & Tested Results