07-14-2013, 08:10 PM
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#275 (permalink)
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Base Member
Join Date: Feb 2013
Location: Atlanta
Posts: 106
Drives: Z34, BCNR33, F83
Rep Power: 12
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All exhaust will have some rasp and hiss with test pipes. Nature of the beast. Some say the m370 manifold can reduce rasp as well.
If you don't want rasp or hiss throw the stock cats back on or get resonated test pipes or hfc.
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