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    1. #1
      Join Date
      Sep 2010
      Orange County, CA

      Gauge/wall thickness

      I see several universal exhaust kits are made in 18 gauge / .049 wall T304 3Ē diameter. I would think itís just fine to use, for example the Borla, Stainless Works and Summit kits are all made like this. But I see some recommend 16g .065 wall. Looking to build a typical dual exhaust. Any problems using the thinner wall kits I mentioned?