Thread: Challenge diffuser WHERE ART THOU
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      12-06-2013, 07:59 PM   #197
Boo-E
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Drives: 2011.75 E90 M3 ZCP DCT AW
Join Date: Jul 2013
Location: San Francisco

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Quote:
Originally Posted by GTM_Challenge
Just added some step by step installation instructions for those that have diffusers and wanted some tips. These will be added on our site shortly as well. Please see the link below for the PDF.

http://www.challenge-usa.com/PDF/cha...structions.pdf
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2011.75 E90 ZCP DCT AW OEM CF splitters, mirror, and spoiler. Feeling so stock right about now.
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