GM 5.3L Cat-Back Single-Exit Exhaust Upgrade System with Polished Tip and GMC Logo
GM Part No.: 84488077
Customer Questions & Expert Answers (1)
35% backpressure reduction at 300-g/s, based on correlated flow testing
50-state emissions legal and will not void the vehicle warranty when installed by an authorized GM dealership
Allows the engine to breathe better
Exhaust pipes run below the bumper
Features single highly polished Stainless Steel 4.5-inch diameter tip
Give your Sierra increased horsepower and a more assertive sound with the GMC Performance 5.3L 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 GMC 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 and all necessary mounting hardware. It is 50-state emissions legal and will not void the New Vehicle Limited Warranty
Give your Sierra increased horsepower and a more assertive sound with the GMC Performance 5.3L 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 GMC 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 and all necessary mounting hardware. It is 50-state emissions legal and will not void the New Vehicle Limited Warranty
Helps increase power by up to 7 HP and 4 lb.-ft of torque
Helps to reduce restrictions in the exhaust system
Includes rear muffler assembly, exhaust clamps, polished exhaust tip and other mounting hardware
Upgrade the look and sound of your vehicle’s exhaust system