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      07-28-2013, 12:15 AM   #1
SlashM3
Second Lieutenant
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Drives: 09 E93 M3 interlagos
Join Date: Jul 2013
Location: Reunion FL.

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Test pipes and xpipe?

I'm buying a pair test pipes and was wondering if I could put a aftermarket x pipe also. And if I could would that be massive hp gain?