The Dual Out the Same Side (DOSS) systems are designed to give your late model truck the custom look of a NASCAR race truck. These Flowmaster ''Muscle Truck'' systems feature mandrel bent 16-gauge aluminized steel tubing custom bent to fit your vehicle, either weld-on or flanged inlet pipe/pipes, specially tuned muffler, clamps, hangers and stainless steel exhaust tips exiting in front of the rear wheel for that aggressive look and sound of a dual exhaust race vehicle.