View Single Post
      11-17-2012, 09:34 AM   #19
m3an
Banned
m3an's Avatar
39
Rep
1,590
Posts

Drives: M3
Join Date: Oct 2010
Location: South Florida

iTrader: (2)

Quote:
Originally Posted by anacondatp View Post
thia has been discussed bf as well. acm is kinda straight pipe but not really. bc they still take advantage if the Hemholt chamber in the stock muffler which some people believe helps eliminate the drone. again, its theory and im speaking from reading. no real experience
Yes but the chambers are now really useless as they aren't long enough for the added volume
Appreciate 0