GM Accessories 84488076 - 5.3L Cat-Back Dual-Exit Exhaust Upgrade System [2021+ Suburban]

Give your Suburban increased horsepower and a more assertive sound with the Chevrolet Performance 5.3L Long Wheelbase Cat-Back Dual-Exit Exhaust Upgrade System. This exhaust system offers an increase of up to 4 horsepower and 2 lb.-ft. of torque, while reducing backpressure by 19% 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. Installing this exhaust system with the 5.3L Engine Cold Air Intake results in a combined performance increase of up to 5 horsepower and 3 lb.-ft. of torque. This Performance Exhaust Upgrade System includes the rear muffler assembly, Y-Pipe, exhaust clamps and all necessary mounting hardware. It is 50-state emissions legal and will not void the New Vehicle Limited Warranty.