|
Is The OEM Performance Exhaust Considered an Upgrade ??
Sup Guys!
Title might be not clear enough, what am wondering is :
Is the OEM Perf Exhaust considered an upgrade that will suit let's say a COBB Aggressive map that requires an upgraded Cat back or do we necessarily need to go to the aftermarket in order to use these maps requiring an Exhaust upgrade ??
Thank you
__________________
2008 135i Alpine White 6MT/ BMW SSK / top HiFi logic 7 / Red Boston / Michelin PSS / PPK1 / OE Perf Discs with Cool Carbon /CDV Delete .
|