Thread: 2012 BMW 528i M sport CONFUSED on EXHUAST
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      12-28-2011, 06:29 PM   #5
KRUZNM3
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Drives: F80 M3
Join Date: Jun 2008
Location: Los Angeles, CA

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check this out... http://f10.5post.com/forums/showthread.php?t=608241

all you have to do is either buy a quad diffuser for your M-Sport rear, or purchase the quad cutout from the dealer
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