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> GT exhaust- cat or no cat
post Oct 19, 2006 - 5:54 PM
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Davesceli

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I've been reading some of the old threads and i can't figure out whether or not losing the cat will gain power. I want to do my exhaust but im not sure whether to change to a hi-flow or keep it stock. Some say yes and some say no..

By the way, 2.5inch piping should be fine for a gt right???

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