View Single Post
      06-24-2013, 02:43 PM   #73
808MGuy's Avatar
Drives: 2009 E90 M3
Join Date: Jun 2008
Location: Oahu, Hawaii

Posts: 2,270
iTrader: (3)

Originally Posted by Chriskm3 View Post
Akra is the quietest exhaust outhere that produces power gains an weight savings. But there is a reason why BMW oem has 4 cats and 2 res.
4 cats is the standard configuration for pretty much every modern car in order to meet emissions requirements.
09 E90 M3 - Interlagos Blue / Black Novillo / Sycamore Anthracite / Eibach / HRE

808MGuy is offline  
Reply With Quote