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  1. Exhaust with cutout?

    5.7L V8 Specific Topics
    Hey everyone, I have an 07 sport, it has a factory skirt package that has a cutout in the skirt for the exhaust on only one side, so I've decided to do a single in/single out flowmaster super 44 muffler, and remove the reso. I was wondering if there would be any beneficial gain or loudness added...
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