I traded in my C63 for a....
https://mbworld.org/forums/c63-amg-w...no-action.html
But agreed with c32amg-DTM, my best bet for accurate results is on the track!
One more thing I have a friend who flashed his ecu with a local tuner. He was able to reach a rwhp of a bit over 380 on just the flash for his C63. His dyno was a mustang dynamometer.
Also how difficult of a job is the installation of Exhaust mainfold? Do you have to go through the engine bay or is the work performed from the bottom like cats or straigth pipe work?



