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Old 03-10-2010, 05:16 PM   #1 (permalink)
G Fo12ce
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Default Exhaust H Pipe vs. X Pipe: Difference?

I know these go on the same portion of the exhaust system after the cats, that's not my question.

My question is given all other aspects of a cat back exhaust are the same (even the point at which the exhaust is merged) is there supposed to be a benefit of an X versus an H. Anything documented here or on the 350 forums?
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