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Old 08-18-2011, 08:55 AM
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Jerry Clayton Jerry Clayton is offline
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Join Date: Jul 2005
Location: Bartlett, Ill
Cobra Make, Engine: Everett-Morrison LS1
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Side pipes will be the most HP--with or without the cats, an undercar system won't come close to what you can do with sidepipes--

However---it is a fact that a lot of sidepipes out there are very restrictive and cost a lot of power---you have to make a wise choice
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