Description

Give your Sierra increased horsepower and a more assertive sound with the GMC Performance 5.3L Long Wheelbase Cat-Back Single Exit Exhaust Upgrade System. This exhaust system offers an increase of up to 7 horsepower and 4 lb.-ft. of torque, while reducing backpressure by 35% at 300-g/s, based on correlated flow testing. Designed and validated by Chevrolet Performance engineers, this 304 Stainless Steel Cat-Back System is tuned to maximize the performance experience while minimizing drone. This Performance Exhaust Upgrade System includes the rear muffler assembly, Y-pipe, exhaust clamps, polished tip and all necessary mounting hardware. It is 50-state emissions legal and will not void the New Vehicle Limited Warranty. ⚠ WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov