which is what causes excessive wear and tear on the clutches inside your transmission
-Professional installation required & available
Less transmission slippage
or E class with AMG side skirts/rocker panels
C63, E63, CLS63, CL63, ML63, GL63, G63, S63 AMG M156 ECU Tune Cooling which is what causes excessiveM156 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