Thread: Stock F30 335i Axle Back Exhaust Muffler Modification and Dissection
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      04-16-2013, 11:37 AM   #27
buildbright
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Drives: F80 M3 MG
Join Date: Sep 2012
Location: Tampa, FL

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Quote:
Originally Posted by Koer View Post
Already welded mine in, left half of the holes open, half welded.

Sounds deeper and more gurgly!
No drone at all!
Great Job. You should not get any drone as long as you have the center chamber.
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