2001-2006 Chevrolet Suburban, Avalanche and GMC Yukon XL 1500 Series 1/2 Ton with 5.3L V8 Engine (Does Not Fit with Auto-Leveling Option).American Thunder KitCat back, Exhaust, Avalanche, Suburban, Yukon, PerformanceCat-back...
2001-2006 Chevrolet Suburban, Avalanche and GMC Yukon XL 1500 Series 1/2 Ton with 5.3L V8 Engine (Does Not Fit with Auto-Leveling Option). American Thunder Kit Cat back, Exhaust, Avalanche, Suburban, Yukon, Performance Cat-back 409S 01-06 GM Cat-back System 409S - Dual Side Exit - American Thunder - Moderate Sound Cat-back System 409S - Dual Side Exit - American Thunder - Moderate Sound - 2001-2006 Chevrolet Suburban, Avalanche and GMC Yukon XL 1500 Series Exhaust System Kit Fits 2001-2006 Chevrolet Suburban, Avalanche and GMC Yukon XL 1500 Series 1/2 Ton with 5.3L V8 Engine (Does Not Fit with Auto-Leveling Option). For the person who wants the look of a traditional dual exhaust system with all the benefits that a Flowmaster Cat-back exhaust system provides. D.O.S. (Dual out side) systems are the perfect choice. American Thunder systems deliver a moderate to aggressive interior and exterior tone along with improved throttle response, power and mileage. Includes all necessary parts and hardware for easy installation.
