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I need to address this again. I have been getting so many mixed reviews. Watching videos people who change their cats to high flow seems to get louder for sure . I called a very well deemed mustang guru and company today. They told me that the stock 2017 mustang gt cats arent very restrictive at all . And that changing to 50-100 cell high flow cats wouldn't do anything for me
I need some first hand experience here . I dont care about power. I want more volume without going header or cat delete. Will this work?
I need some first hand experience here . I dont care about power. I want more volume without going header or cat delete. Will this work?
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