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      02-14-2013, 02:07 PM   #18
VelocityM3
Brian
 
Drives: Alpine White E92 ///M3
Join Date: Sep 2008
Location: Encinitas

Posts: 81
iTrader: (3)

Quote:
Originally Posted by NAVYPB View Post
Mine only happened around 2000-2300 rpm. No matter what gear. Even in neutral. Same rpm. Good luck and keep posting on results.
Exact same as mine. I started noticing the vibration after I removed catless x-pipe and put the stock x-pipe back on. I suspect there is a loose bolt that vibrates a perfect frequency created between 2000-2500 RPM. I am probably going to take it into the shop soon and have them twist all my exhaust bolts.
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