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      03-23-2013, 10:51 AM   #2
buildbright's Avatar
Drives: 335i BMW F30 Sedan
Join Date: Sep 2012
Location: Tampa, FL

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I have been waiting for this! But this makes me relize the F30 stock muffler is a well designed unit so well I can't believe it. It's so quiet with this design I am a little shocked. But it does have a giant Hemholtz Chamber.
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