Samson Legend Series Exhaust - Chrome/Longhorns S2-911 Mild steel, quad chrome finish Show quality quad chrome, provides increased horsepower, torque and improves gas mileage Stepped (1 3/4 to 2 1/4) headpipes with removable baffles and removable 2 1/2 full coverage heat shields O2 sensor ports will accept OEM and aftermarket sensors Plugs for O2 sensor ports are included