View Single Post
      03-10-2010, 10:22 PM   #9
lxxiv
New Member
1
Rep
28
Posts

Drives: '09 e92 m3
Join Date: May 2009
Location: Los Angeles, CA

iTrader: (0)

http://www.m3post.com/forums/showthread.php?t=253661

Quote:
Originally Posted by bame_E92 View Post
Does anyone know the best way to up the noise on the 2009 E92 OEM exhaust? I want to keep the stock exhaust so I'm just looking for something to add that extra roar. I heard of some kind of valve that can be installed but I'm not sure exactly what it's called. Any suggestions?