The Track Edition Exhaust is for drivers who want to keep it cranked to 11 at all times. The Track Edition Exhaust takes the engineered design of the Touring Edition Exhaust, including the 3* Non-Resonated Downpipe, and replaces the rear AWE 180 Technology? resonators with Track Edition straight pipe sections, completely uncorking the B9 A4. This version is known to get rowdy in the mid range, and may be too much for many. For that reason, this particular version cannot be returned due to sound preference. Prepare yourself.It*s too loud! don't worry. If you're looking to bring it down, AWE offers perfectly engineered Conversion Kits. Turn your Touring Edition to a Track Edition, or vice versa, with ease. Simply unclamp the rear Touring or Track Edition sections and replace with the new configuration. Easy. Exhausts are finished off with 102mm, slash-cut, AWE logo'd double walled tips, in your choice of Chrome Silver or Diamond Black. All tips are individually adjustable, allowing depth into the bumper to be set according to personal taste. There's a reason AWE is the #1 S4 exhaust on the planet. AWE Track Edition Exhaust for B9 A4, Dual Outlet - Diamond Black Tips (includes DP)