If raw and rowdy are your speed, the Track Edition is your dose of steel. The Track Edition Exhaust retains all the precision engineering of the Touring Edition Exhaust, including the X-pipe and 3” diameter tubing, minus the 180 Technology®. Given the increase of airflow when introducing an aftermarket catalyst, special resonators were developed on this system to keep sound frequencies in check. Please note: this version is known to get rowdy in the mid-range and during cruising speeds, and may be too much for many. For that reason, this particular versions cannot be returned due to sound preference. Prepare yourself. If after running this system you're feeling it's too rowdy, AWE has you covered. AWE has Conversion Kits to turn your Track Edition into a Touring Edition, with ease. This system comes standard with AWE's Diamond Black 180mm RS-style oval tips, complete with stamped AWE logo. What else could an RS5 ask for?