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Longtube headers and a x pipe with stock mufflers is going to give you a bigger hp gain over just a catback. Sounds wise, its pry better just go fo with an axle back system or a x/axle back combo. Why not get the full exhaust though?
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2002 Chevrolet Camaro SS #7590
345 HP Package, LPP Headers and ORY, GMMG, SLP CAI and Smooth Bellows, PHB, Chrome TTM's
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