The F body mufflers work the best, the intake hole is just a lill bigger (adapter) and it has dual outlets in the right positions. Magnaflow, Borla Flowmaster all make good stuff.

I goes from a single pipe to the back then from there it goes into the one side then 1 pipe comes off of both sides of the pipe and exit out the rear into rectangular tips.. all stock but it has a tinny sound.. and I just found out the other day that may dad customized the cat. converter.... by taking it off and welding in a chunk of pipe... but I also think the mufflers shot.. and its probably a 300dollar muffler. and if I take it to a shop they will probably have me buy and install a cat. converter.

300 sounds a little high to me....

300 is way high. You try summit or jegs yet? I'd cut and clamp my own, rather than pay 300.

I could get a magnaflor/flowamster type system on for less then $300 i'm sure.