M156 RaceIQ ECU Tune. Compatible with most all cars with the M156 engine: C63, E63, CLS63, CL63, ML63, S63 AMG
- Dyno tested
- Better throttle response
- Customized to your vehicle's modifications
- Instant power gains
- Top speed governor removed
- Optimized timing and fueling maps
- Flash tune in the comfort of your own garage via the OBDII diagnostic port of your vehicle using My Genius handheld programmer
- Gains +40hp & +30ft/lbs tq on stock engine