Thread: Muffler Delete with resonators still intact.
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      06-11-2015, 12:51 PM   #6
grebski
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Drives: 2007 E92 335i
Join Date: Aug 2014
Location: San Diego

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Quote:
Originally Posted by W/// View Post
Cut out the secondary cats, that might increase the sound just a tad.
I don't think I'll pass smog. Might as well just do test pipes at that point
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