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Chez_Hd -> 2.7T Exhaust Question (8/28/2007 8:01:47 PM)
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Anyone done a cat back install on a 2.7T?? I have an 02 a6 quatro with 2.7T 6speed, and sport susp. I want to run a 2.5" pipe cat back into Borla ProXS cans. What is the stock exit diameter from the cat? I'm sure I'll need to taper to 2.5" but was wondering if there is anyone out there who has done a similar install. The car is my daily driver, and I don't want to tear into a weekend project without all of the parts.
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