Spazdoc

I have a 2020 C63s with intake, catted downpipes, nothing else (no tune). Have bought cars and use service at Loeber. Recently had a misfire, but the SA/mechanics don't want to deal with it until I return to stock, so trying to find a dealer that is not averse to basic mods before I return DP to stock.

I know it might be a Mercedes thing, since I have had other car makes with less aversion to mildly modified vehicles.

kjb55

Try Dean at MB St Charles.

MaverickC43

Did u try Dean?