E92 M3 coupe w/ ARQRAY EXHAUST and WHEELS
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10-18-2007, 08:53 PM
Olympic Lifting Junkie
Drives: '15 M4 (and CHP CVPI)
Join Date: Jun 2006
Location: On 2 wheels clipping an apex!
Originally Posted by
I was wondering about the same thing. Anybody know?
Maybe some sort of design element intended to increase back-pressure?
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