Hooker Headers is proud to announce the availability of their 2005-06 Mustang GT Stainless Steel After Axle Aero Chamber Muffler System, P/N 21521HKR. The Hooker Aero Chamber system is constructed of light weight 18 gauge 304 stainless steel and finished off with a brilliant vibratory polish. Included are polished stainless steel inlet pipe that make this muffler set a direct, bolt-on replacement for the heavy, ugly factory cans. To complete the look of each Hooker Aero Chamber muffler is a fully welded 3.5” polished 304 stainless steel slash cut oval tip. The Hooker Aero Chamber mufflers offer the lowest back pressure and produce a deep throaty powerful sound with no cabin drone commonly found in competitors systems. Hookers system utilizes all the factory installation hangers and includes all installation hardware including vibratory polished P clamp connectors for an attractive leak free installation. Left and right replacement mufflers are available separately, P/N 21520HKR (left) and P/N 21522HKR (right). For more information contact Holley Tech Service, P.O. Box 10360, Bowling Green, KY., 42101-7360, Telephone 270-781-9741. For nearest dealer: 1-800-HOLLEY-1. Or visit us on the web: www.ilovemyhookerheaders.com.