I finally bought my exhaust system. It is a 3 inch ls1/lt1 flowmaster american thunder(3in/out), with pacesetter ceramic coated headers for the 3.4, with the y pipe. Now I have a couple of questions. First is, I need a cat. I would want to have a carsound, but dont think their would be much difference if I went with a catco. If someone could give me the correct 3 inch in/ out cat to buy, and which brand would be better with mey setup. Also I need the pipe that goes froom the cat to the ypipe, where can I pick up a cheap one. Last is since I bought the Ls1 flowmaster system, is their any mods that will be needed to fit, comes with ipipe and over axle.
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