Gibson 21-22 GMC Yukon XL 1500/Chevrolet Suburban 1500 5.3L Cat-Back Single Exhaust - Stainless Suspension>Suspension Packages providing an excellent aesthetic upgrade

providing an excellent aesthetic upgrade for your engine bay

Flanges welded on both sides

All water pumps are also 100% tested to ensure proper functionality

Dramatically increases air density 18% increase in flow volume

A Mishimoto fan shroud will notably improve engine cooling performance by delivering more air to the dual-pass race radiator and driving out excess heat

Gibson 21-22 GMC Yukon XL 1500/Chevrolet Suburban 1500 5.3L Cat-Back Single Exhaust - Stainless Suspension>Suspension Packages providing an excellent aesthetic upgradeGibson Single Side Exhaust is perfect for improved acceleration, maximum hill climbing, towing and passing power. This is our best performing Exhaust System. Exits behind the rear tire. Quieter in the cab than any other Performance Exhaust. Dyno test results show it makes maximum torque and horsepower at low end (1800 to 3000 RPM). Horsepower gains average 10 15 and 15 20lb ft of increase torque. Hassle free, bolt on installation with professional