Give your Mustang proven performance and a powerful deep muscle-car sound to match, with a PowerFlo Rear-Axle Back Exhaust System from SLP Performance Parts. This exhaust kit includes a pair of our PowerFlo mufflers, which use a straight-through design and ceramic-wrapped perforated core to significantly outflow traditional chambered and turbo-type mufflers. Combined with our all new 4" polished tips, youll really feel and hear the difference!