buying exhaust
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Joined: Mar 2013
Posts: 31
buying exhaust
I plan on upgrading my exhaust system I want to go custom exhaust from my turbos back. with no cats and mufflers i am wondering if i will get more airflow without the cats and if i am going to need any back pressure with cats? my car is the TT version
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Joined: Jul 2011
Posts: 548
From: Foresthill, California
Go without cats if you don't need them in your state, or are willing to change them out for smog.
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