Celicasaur
Active Member
- Joined
- Dec 17, 2011
- Messages
- 199
- Car
- W212 E63 AMG PP
Hi guys, I heard that at a recent MSL dyno day, there were a handful of cars (C63 and E63) M156 engine'd cars that were down on power and very unresponsive to tunes/mods....anybody able to shed more light on this please?