I started off with gt500 axle backs and thought they sounded good but wanted more. I got a good deal on an american thunder cat back. I was happy at first but still want the car louder. I guess im going to have the mufflers cut off and weld in something else in. I just don't know what to go with. I have heard flowmaster outlaws and muffler deletes and they are to loud. Just wanted to get some opinions from some people. Right now I'm thinking about super 44's. I want a deep rumble not raspy race car sound.