The?Supreme SP?exhaust?features up to a 10whp gain with a sophisticated exhaust note and an aesthetically artistic design. The classic dual oval muffler axle-back system with large free flowing 63.5mm (2.5?) piping produces no exhaust drone. Thanks to the two large SP mufflers, it has excellent sound suppression at idle and cruising. In spirited acceleration, the straight-through design makes the exhaust comes to life with a deep rich GReddy sound. The unique quad tip configuration, using two different diameters, in an unique layout to best matches the styling of the vehicle.