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TTsteve -> 2.0T exhaust (10/4/2007 6:44:07 PM)
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Im looking to have a custom 3 in downpipe made but was wondering if I should use the stock cat or get a new one? Im trying to keep the cost down and I have heard that the Audi cats are pretty free flowing, is this true? Plus I plan on having the 3 in DP go to the stock cat back. Now the stock muffler is HUGE and I want to replace it but why is it so big? Does it do something in particular that replacing with a magnaflow might mess up? Thanks.
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