getting ready to install a set of RK autowerks catless downpipes on mine tommorow. the quality and finish on them is great and they are on a holiday sale right now for $1000.00. Can report back on fitment tommorow. They will throw a cel unless your car is tuned. I opted just to get a jb4 set up for mine and i did the berger intakes and charge pipes aswell. Mine is also a comp package aswell so i can shoot you a clip of the exhaust with the downpipes on it