i need to install a DP fix from BMS due to being catless and needing inspection.
I have procede now which im going to sell and get cobb.
Can i leave the DP fix in while running cobb?
'07 e92 335i: Alpine White/Coral Red/Aluminum Trim
COBB S2+FMIC | Stett CAI | Stett CP | ETS FMIC | FORGE DVs | AR DPs | 335iS Mufflers |