Flowmaster American Thunder Single Exhaust System - 2001-06 Chevy Suburban/Avalanche/GMC Yukon XL 1500 5.3L w/o Auto-Leveling 53811111 Will hold fuel system pressure

Will hold fuel system pressure for at least 20 minutes after pump shutdown

1971-1973 Plymouth Barracuda

AMP Performance V8

No Electrical System Required For Gauge Operation

Single Center Exit

Flowmaster American Thunder Single Exhaust System - 2001-06 Chevy Suburban/Avalanche/GMC Yukon XL 1500 5.3L w/o Auto-Leveling 53811111 Will hold fuel system pressureFor 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. Features: Mandrel Bent 16 Gauge Aluminized