Thread: Camaro L99 American Racing Headers (Catted) system with stock exhaust = +42rwhp
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Old 06-26-2009, 03:43 PM   #7
Crowley
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Drives: 2012 GT500
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Quote:
Originally Posted by THE EVIL TW1N View Post
Reading the other threads, the stock catback isn't much of a restriction... or atleast on the M6's.
Id bet on at least 10rwhp or a little more for a good 3 inch catback/axelback

Crowley
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