View Single Post
      08-30-2011, 06:09 AM   #5
J08M3
Major General
 
J08M3's Avatar
 
Drives: 2011 M3 COUPE
Join Date: May 2008
Location: NEW YORK

Posts: 6,012
iTrader: (8)

Quote:
Originally Posted by MischiMischi View Post
I think it is definitely a drone - you can also feel a slight vibration.
Even OEM has slight drone at that RPM. BMW put out a tech bulletin about that years ago. In my opinion the performance drone is no more or less than the OEM muffler.
__________________
J08M3 is offline   United_States
0
Reply With Quote