Originally Posted by Damemorder
Originally Posted by willwren
ADTR did some testing and showed that it was beneficial.
ADTR also tested flow numbers on 3" and 4" pipe?
I wouldn't take ADTR'* "test" results.
I would. But I know more about it than you. At the time they tested 3, 3.5, and 4" intakes, our cars weren't flowing as much as they are today dame.
Now SOME of our cars are better with a 3.5".
ANY exhaust component will benefit from ceramic coating. Anything you can do to hold the heat in will increase exhaust velocity. That'* why ADTR used to sell coated crossovers and downpipes.