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      07-18-2013, 10:33 PM   #29
Devious21
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Drives: 2006 Z4M
Join Date: Mar 2011
Location: SF Bay Area

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Quote:
Originally Posted by Urluz3n View Post
Okay guys I have stromung mufflers, FAB Speed headers & Active Autowerks tune. Everything is working great! No CELs -Awesome sound! (This is what a MZ4 should sound like). One minor problem when I let off the throttle at slower speeds it sounds like a muted back fire. Does anyone else car do this?
Any audio clips? I'm going to be installing almost exactly the same setup.
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