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

The Gibson Single Side Exhaust is designed for improved acceleration, maximum hill climbing, towing, and passing power. It's described as Gibson's best-performing exhaust system, exiting behind the rear tire. It offers a quieter in-cab experience compared to other performance exhausts. Dyno tests show it delivers maximum torque and horsepower at low-end RPMs (1800 to 3000 RPM), with average horsepower gains of 18-21 and torque increases of 20-22 lb-ft. It features a hassle-free, bolt-on installation with professional results, requiring no welding. The product is backed by a Lifetime Limited Warranty.