Thread: Back to BMW
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      03-22-2014, 12:09 PM   #5
chiefneil
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Drives: 2014 335i M-Sport
Join Date: Sep 2013
Location: Arizona

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I think the m-sport really benefits from the m-perf rear diffuser. The standard m-sport rear diffuser is the most plain of all the F30 lines, imho. I think BMW recommends it in conjunction with the front lip spoiler to maintain aero balance as well.

It's a port-installed option, or there's significantly cheaper replicas available off eBay.

BTW, the m-sport brakes will anthacize your wheels for free with brake dust in a couple weeks