Use OEM donut gaskets for the best seal. I ordered mine from Courtesyparts.com
Edit: I think the donut gaskets only work with v3 of the ART pipes. Do your ART pipes have a little bit of tube protruding past the 3-hole flange? If so the donut gasket fits over and around that little bit of tube like on the stock cats.
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some mods
Last edited by Mandingo; 05-11-2015 at 08:05 PM.
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