Loud, Aggressive Exhaust. Add a loud, aggressive exhaust note to the sound of your GT ot GT500 Mustang's exhaust with a C&L Muffler Delete Axle-Back Exhaust System. This C&L Axle-Back exhaust features a muffler delete design that will produce an extremely loud aggressive exhaust note that will be sure to wake up the entire neighborhood. Besides an increase in sound, this Axle-Back, with its mandrel bent piping, will also improve your Pony's exhaust flow for an increase in overall power and performance.Quality Construction. C&L proudly manufactures their Axle-Back Exhaust systems from mandrel-bent, 2.5-inch diameter, premium grade, 409 stainless steel tubing for excellent exhaust flow and enduring corrosion resistance. This system features a pair of 4-inch, polished, 304 stainless steel exhaust tips.Direct Bolt-On Installation. C&L engineered their Axle-Back Exhaust to be a direct upgrade replacement for your Pony's factory rear axle-back exhaust. This Axle-Back Exhaust Kit easily bolts up in the stock location with no cutting, drilling or modifications required for a straight forward install that can be completed in about 2 hours.Application. This C&L Muffler Delete Axle-Back with Polished Tips is designed to fit 2005-2010 Mustang GT and 2007-2010 Shelby GT500 models.