Originally Posted by ik999
please ask your service manager which firmware your M3's turbos are running.
they usually deny it, so you have to ask ardently
'07 e92 335i: Alpine White/Coral Red/Aluminum Trim
COBB S2+FMIC | Stett CAI | Stett CP | ETS FMIC | FORGE DVs | AR DPs | 335iS Mufflers |