Originally Posted by M3pnoy
I believe the design of the x-pipe is the difference and they claim the f1 evolution is 20% louder then sport version on open valves. I personally have the f1 evolution innotech.
Since when? Did i hear it?
2012 MR e92 M3 DCT, fully loaded... ESS VT2-625
, Brembo 380, BBS FI's, Akra/Challenge Sport, KW Sleeve kit, Full OEM CF Interior
2008 e92 M3 Coupe 6MT | AW/BLK Extended...SOLD!