RKP 2015-2017 BMW F8X M3/M4 CARBON FIBER REAR DIFFUSER
While the majority of the F8X M car is stunningly muscular, the diffuser section in particular leaves something to be desired. The flat polyurethane insert installed from BMW does not match the M3/4s aerodynamically sculpted exterior, and so was the first item RKP elected to attack. In contrast, the RKP diffuser was designed with full length fins that reach all the way from the inside of the insert to their termination point at the rear of the bumper. The fins are particularly thin, and although this makes them especially difficult to manufacture, their athletic appearance is more purposeful and athletic. Unlike the BMW performance diffuser, RKPs fins extend all the way to the edge of the diffuser, giving them a much more noticeable look in all of the right areas.
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