M156 CLS63 adaptation question with aftermarket tune

**Sticky** · 11-20-2011, 08:55 PM

Originally Posted by DD GT3 RD

apparently. But so were vbox runs cause they werent any faster. So....

I think the P31 is simply harder to extract performance on. If you had a standard C63 you would see gains that would stick.

**DD GT3 RD** · 11-20-2011, 08:59 PM

Originally Posted by Sticky

I think the P31 is simply harder to extract performance on. If you had a standard C63 you would see gains that would stick.

I agree 100% and saw that as the car I ran stock I beat by a nice margin and after tune we were even

**Sticky** · 11-20-2011, 09:01 PM

Originally Posted by DD GT3 RD

I agree 100% and saw that as the car I ran stock I beat by a nice margin and after tune we were even

Makes perfect sense.

M156/M159: M156 CLS63 adaptation question with aftermarket tune