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09 Nismo Z exhaust project
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02-14-2014, 12:24 PM
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Megan370z
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Quote:
Originally Posted by
jwick
It's 2.5" O.D. but with thin wall pipe I.D. and O.D. are pretty close
you close but not quite.
OEM Y-pipe exit spec is as follow ; avg 2.5'' OD and 2.350'' ID ,, its a double wall exit (inner sleeve)
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