How do you get a small truck to feel like a big truck? Add more power. MagnaFlow Performance Exhaust Syetems custom-matche pipe size with engine size to get the maximum performance from these smaller footprint engines. Fast-flowing mandrel-bent stainless steel tubing is utilized to minimize backpressure and improve engine exhaust scavenging. This combined with a straight-through MagnaFlow Performance Muffler and 3" polished stainless steel exhaust tip add up to big truck gains of 11.1 horsepower and 13.8ft.-lbs. of torque on the 4.3LV6. Magnaflow exhaust systems have the highest exhaust flow rates and deliver the greatest quality of any Performance Exhaust System.