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RESEARCH Exhaust System
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10-16-2010, 04:19 PM
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Diokaef
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Drives: M235I 2015, 335i 2011
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Not as Loud since we are trying to use reflected waves to cancel out the sound, should leave very comfortable inside cab and a high pitche sound outside with no drone, but to be honest that is on theory before I can test it I cannot say for sure
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