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09-12-2013, 09:26 PM
Private First Class
Drives: MY09 335i Coupe DCT M-Sport
Join Date: Nov 2012
Location: Perth, W. Australia
Originally Posted by
AR's won't cause drone, definitely makes it louder, but the rear muffler is responsible for keeping drone in check.
AR DPs are definitely the way to go
Looking forward to getting mine Stuart!
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