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      11-09-2012, 06:14 PM   #37
M3PO
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Drives: '08 IB E92
Join Date: Sep 2011
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Quote:
Originally Posted by sycd View Post
The connecting pipes are really nice compared to the stock ones which are flattened at some points. They'll improve the flow for sure but whether that would be an audible or performance difference is another question.
The difference in flow will be minimal and therefore the difference in power will be very minimal. The real choke point of the system is the cats.

I really think you would like the Dinan axleback with some test pipes. Power, little to no smell, and good, manageable sound (no drone on the freeway).
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