GM pickups are ideal heavy-duty work and tow vehicles. MagnaFlow's GM Pickup exhaust systems allow these big engines to do the work that they were designed for. These performance exhaust systems are available in both single and dual inlet. Each exhaust system features fast-flowing mandrel-bent tubing, a 22" long, 5" x 11" straight-through MagnaFlow Performance Muffler, a 3" or 3.5" mandrel-bent tail pipe and a 4" polished stainless steel side exit exhaust tip. You'll love the smooth, deep tone that accompanies the added torque and horsepower you get with MagnaFlow Performance Exhaust Stytems. Magnaflow exhaust systems have the highest exhaust flow rates and deliver the greatest quality of any Performance Exhaust System.