These Mustang axle-back exhaust systems provide your S197 or S550 with better looks, increased horsepower, and more performance. S197 Axle-Back kits bolt up directly to your factory exhaust system and feature new wider piping, mufflers, and exhaust tips. S550 axle-back exhaust kits require a cut and clamp approach as the factory exhaust is welded together. This is usually one of the first modifications done to the 05-20 Mustang as it looks great and gives you that true American muscle car sound. LMR.com carries a full line of axle backs made by leading manufacturers in the industry such as SVE, Flowmaster, Ford Racing, SLP, Pypes, Roush, Borla and MBRP. Pair it up with a new mid-pipe and a set of headers for the perfect exhaust system! Get yours today and get your 2005-20 Mustang sounding, performing, and looking better than the competition!