Airflow Posted March 24, 2019 Share Posted March 24, 2019 I tried searching, but don’t seem to see it; what is the exhaust tubing diameter of the 3.0T specifically from the cats back? Quote Link to comment Share on other sites More sharing options...
LONMON Posted March 24, 2019 Share Posted March 24, 2019 I haven't measured personally yet but I read another members post about adding borla xs pro mufflers to his car and the part number he used was 2.5" inlet and outlet. Looking at the piping from underneath I would say that looks right. Quote Link to comment Share on other sites More sharing options...
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