Personally, I'd stay with the h-pipe instead of going with the x-pipe. I know you get more flow with the x, but Xs are too raspy for my taste (read that ricey). I have a 2009 GT500 that has the x on it, but I would rather have the fullness of the h. Even with ProCal tuner, FR CAI, and FR500s exhaust, it still sounds tinny.
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anyway to fix my h-pipe?
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