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Before you say "oh here we go again someone looking for a muffler", my question has to do with the cats. I am wondering if I should delete the first cat, second, or both when I install my muffler? I have 3.7L and have seen several of the threads discussing deleting the cats but nothing regarding which is best for possible gains. I wasn't sure if it just all depended on how I wanted the truck to sound or if there was reason to delete one over the other or both. Thanks for any and all input.