I've been looking at the Spin Tech Split Case (part # 343 SC) can anyone tell me about this muffler? It's for my '89 camaro 5.7. I want a 3" pipe coming in to it with 2.5" duals coming out (crossflow application). Can anyone tell me what it sounds like? Cause I don't want a quiet muffler! And how much power can I expect to get out of it over stock? Thanks for the help. -89IRO