I've got the ATR 2 1/2" dual system with the aluminized pitbull muffs. I love the sound of this exhaust on the car but unfortunately the old pitbulls are about shot and full of holes. It's starting to sound kind of ratty so may be time for some new mufflers. I know most guys seem to prefer either the ultra-flows or magnaflow. I'm not looking for something that's super quiet as I dig the sound of the pitbulls. My question is, which muffler will give me the pitbull sound or be fairly close and also be a free flowing straight through design?