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#3
12-17-2007, 05:08 AM
Hummer Authority
Join Date: May 2005
Location: Texas
Posts: 1,304
Re: Alpha exhaust
Quote:
Originally Posted by Allen Beggs
I heard that GM already put in a GM performance Division Cold Air intake and Performance Exhaust. I heard of a guy in Vegas at Towbin Hummer who put a Magna-Flow and it sounded meatier, but actually cut performance.
GM hasn't put anything too special on it -- if so, they wouldn't keep it a secret.
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