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10-22-2019, 02:48 PM
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#272
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Brigadier General 
Drives: E90 M3
Join Date: Oct 2011
Location: Midwest
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Quote:
Originally Posted by solstice
I’m no expert in this area but I strongly suspect this is highly functional aero, both the horizontal black plastic winglike floor extensions and the vertical slats in the diffuser working together to generate performance enhancing flows around the rear.
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M4 GTS, GT3, C63 S | E90 M3s, E39 M5
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