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      12-14-2008, 10:57 PM   #1
jml's Avatar

Drives: E90M3
Join Date: Dec 2008
Location: Austin, TX

iTrader: (2)

Factory exhaust provide any aero benefit?

Any engineers want to take a stab at this? Seems odd that they spent so much time to make the bottom of the car smooth and closed in unless it was for a reason. The stock exhaust covers up that large hole under the trunk perfectly, and the valence on the rear bumper is supposedly a real diffuser this time.

Any thoughts?
Appreciate 0
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