BMW M3 Forum (E90 E92) - View Single Post - Challenge Street mid + M performance catback. Anyone?

S65V8 · 02-02-2013, 04:49 PM

Doesn't the Challenge Street X-Pipe do that already?

http://challenge-usa.com/blog/produc...x-pipe-street/

02-02-2013, 04:49 PM	#4
S65V8 _ 808 Rep 3,160 Posts Drives: ... Join Date: Apr 2009 Location: Los Angeles, CA iTrader: (10)	Doesn't the Challenge Street X-Pipe do that already? http://challenge-usa.com/blog/produc...x-pipe-street/
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