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I have a A/T 3.8 2010 With muffler delete, resonator delete, secondary cat delete w ark test pipes, and still rocking the stock downpipe.

I want to get my car tuned but I don't know what company is best and if I should go cat less downpipe before the tune
 

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I have a A/T 3.8 2010 With muffler delete, resonator delete, secondary cat delete w ark test pipes, and still rocking the stock downpipe.

I want to get my car tuned but I don't know what company is best and if I should go cat less downpipe before the tune
Hey so first hand, there is no cat on the downpipe on the 3.8s, it’s part of the exhaust manifolds. Stock downpipe flows just fine so don’t worry about getting aftermarket ones. But for tuning go with alphaspeed, but it depends where you are located.


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