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I couldn't find a thread on this so if there is already a thread on this sorry. I understand the difference in the shape and sound (H Pipe deeper sound, X Pipe more Rasp) but is there any concrete data or Dynos that anyone has done to prove that the X pipe gives more power? I just bought the MBRP catback that comes with the H Pipe but now am starting to have buyers remorse since all i read is that X pipes are better. Thanks for the help!
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