C63 efficiency upgrades
I'm new to the forum and am starting to do some research on the c63s coupes. I wanted to make a thread to get your guys opinions on upgrades that you feel are necessary not only for power increase but also general reliability (think catch cans, cooling, drivetrain etc.). Whatever comes to mind I would love to hear your opinions!
Thanks,
Sam
Meth injection is a good way to keep valves clean from carbon build up! Otherwise i imagine we will all have to get a valve cleaning procedure done at some point.


