Gibson 14-18 GMC Sierra 1500 Denali 5.3L 3.5in Cat-Back Single Exhaust - Stainless

This exhaust system is engineered to provide an ultimate boost in acceleration, towing, hill climbing, and passing power. It is designed for maximum low-end torque and horsepower (1800-3000 RPM), with dyno testing showing gains of 10-15 horsepower and 15-20 lb-ft of torque. The Gibson Superflow Muffler features a baffled and chambered design with no internal packing, resulting in minimal interior drone and an aggressive sound. Each T-304 polished stainless tip is crafted for durability and style, exiting behind the rear tire. The system is constructed with stainless steel mandrel-bent tubing and includes all factory hangers and clamps for a seamless, bolt-on installation without welding. It is proudly Made in the USA and backed by a Lifetime Limited Warranty.