C63 W204 - Tuning Options

[C43AMG]

Yes, Quaife the best upgrade you can have

 

[Rashman]

Thread necro, but don’t do spacers.
Especially on the fronts.
If you have a 63 and change left over for mods, then get some proper sized wheels.

unless you like this sort of thing...

 

[Dazsw]

There will be tuners near you who Acid can work through to sort a map for your car.

Did it on a few A45s near me.