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      08-07-2012, 11:29 AM   #12
Drives: E92 M3
Join Date: Sep 2011
Location: Renton, WA

Posts: 412
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2011 BMW M3  [3.50]
From another thread I guess there are 3 versions. Going to try and get version 1 done.

Version 1 : replace the 2 big perforated pipes with straight pipe... EXCELLENT SOUND
Version 2 : replace the 4 perforated pipes with straight pipe... LOUD NOT SO EXCELLENT A BIT RASPY...
Version 3 : well make the oem exhaust straight pipe.... INSANELY LOUD... (ITS FAWKING LOUD)

Taken from
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