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      02-23-2011, 05:54 PM   #16
Stuart@BMRAutowerkes
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Drives: a black car
Join Date: Sep 2010
Location: Sydney

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If the diameter of the piping is different your exhaust shop should be able to do up a simple flange converting it from 2.25" to 2.5" or vice versa as necessary.

If the exhaust ends up fouling on the rear cats you can either:
a) relocate them to the front (not sure if I'd bother)
b) go with straight pipes (easy peasy)