View Single Post
      04-27-2013, 08:12 PM   #48
gatorfast
Colonel
gatorfast's Avatar
32
Rep
2,662
Posts

 
Drives: MR E90 M3
Join Date: Jan 2008
Location: SoFla

iTrader: (3)

Quote:
Originally Posted by beemerboy305 View Post
has anyone got proven gains with doing this ?? is it for sure not gonna cause back pressure by removing that and not just replacing with a straight pipe
No gains. This is just for sound.