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Originally Posted by Darkstar87695 hey everyone, I know these might seem like dumb questions but I am not sure of the answers. 1) Are x-straight pipes legal in all states?
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10-20-2009, 07:50 PM
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Join Date: Jan 2009
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2. They are much higher flowing replacements to the restrictive OEM cats. They are an EASY 10-20rwhp gain depending on the type of dyno you use. I haven't seen anyone make less than 10hp to the tire, even on the smaller VQ35HR motor.
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