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      03-09-2012, 09:07 PM   #23
BlueLion
she likes the flavor......
 
Drives: A51-E92
Join Date: Nov 2006
Location: Bradenton - FL

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2007 BMW 335  [0.50]
Quote:
Originally Posted by HP Autowerks
Check the clearance between the cross-over section of the exhaust and the chassis brace. Most shops will secure the exhaust as is sits may cause the cross-over pipe to come in slight contact with the chassis brace. Pre-load the system with a spin jack, then secure all the clamps, that usually does the trick.

How many miles did you put on the exhaust? There is a break-in period for the Borla system.

Harold
OP check what Harold said, I had this same issue and once fixed the drone is bearable and the trim pieces in the car stopped rattling. and I drive an auto
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