Stainless Steel - Black Tips - G80/G82/G83 Maximum gains of +6 HP and +5 lb-ft of torque Enjoyably louder, sportier sound Drone abatement technologies used to reduce cabin resonance Four, diffuser filling, 4.5-inch (114mm) double-walled, black ceramic coated clamp-on tips with laser engraved Dinan logo Larger diameter piping for increased flow (76mm vs. 70mm) 6-pounds lighter than the stock axle back (Stock: 44-pounds vs. Dinan: 38-pounds) Stock exhaust valve actuators reused, and operation of exhaust valve is unchanged so exhaust tone can be adjusted via the M-drive settings Computer controlled exhaust valves are retained and limit noise during low-speed driving...