if its a 4 cyl, they all sound the same to me. With a six, I prefer anything that is a through shot rather than something like a Flowmaster, but I also like things loud. Cheap: Cherry Bomb, like $20. If you want performance too, I would go with an Aero. Have one on both my Dodge and Wrangler. Quite a bit more pricey, but cheaper than a full on cat back system.