Other than an extra hanger near the rear of the mufflers on the 99-04 cat backs, is there really any difference? Like are the bends different, or pretty much the same? Because to me they look the same. And both are 2 1/4 in. stock and 2 1/2 in. aftermarket. So they should fit both right? Or what's the deal? Thanks. Only reason I ask is because Borla never made a Stinger kit for the 96-98's. The tips I think would be the only real issue.