Why could we not of talked about all the problem that can occur with headers and high flow cats 2 years ago? Well I guess I am ok since I have not had any problems since I have upgraded. I am curious if I change out my cats back to stock would I make more power?
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Stillen Exhaust, Stillen Supercharger, Stillen Oil cooler, Stillen Headers, Test pipes, 928 Impeller, 9 lbs pulley running 12lbs of boost, Custom tune from National Speed. 415WHP 345TQ
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