The MRT Interceptor Axle-Back Exhaust for the 2005-2010 Mustang GT and 2007-2010 Shelby GT500 offers tough, muscle-car sound that turns heads for the right reasons. The free-flowing MRT Interceptor muffler provides an aggressive exhaust note, with minimal resonance. It opens up in the higher RPM range to attract the attention you crave. The MRT Interceptor Axle-Back Exhaust features construction from the highest quality 304-stainless steel, making it light-weight and durable. Installation of the exhaust is simple and drill-free. The MRT Axle-Back clamps-on directly in place of the factory axle-back. 3.5" polished stainless steel exhaust tips come welded to the axle-back and are included with purchase of the exhaust system. The MRT Interceptor Axle-Back Exhaust (91A203) will fit the 2005-2010 Mustang, GT and Sehbly GT500 models.