Custom cat back exhaust with 304 Stainless, 2.5" ID dual pipes straight back into high flow mufflers. If somebody tells me how to load a sound clip I will. The system is pretty loud when going full bore. There is some drone inside the car, but the decision was to go all performance with as straight a run as possible, without having to mess with the shield around the fuel pump. My wife and son and everyone else who hears it says it sounds awesome. I think the drone is a little too much, but Kooks said after about 250 miles it will become less as the mufflers get heated a few times