I had my mufflers cut in to the stock pipes at a local muffler shop for $50.I didnt see the point of paying all the extra $ to get a cat-back with the stock H-pipe still on.I think there would be no HP benefit because the cats are the restrictive part,but it did improve the sound.
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1999 GT AOD,FMS 70MM TB,Steeda pullies,Dynomax Super Turbos,MAC cold air kit,Steeda strut tower brace,ATS-III seq. turn signals
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