Flowmaster American Thunder Cat-Back Exhaust System For 99-07 GM 1500 4.8L/5.3L 2023-2025 Chevrolet Silverado 3500 Includes 4" lift performance coil

Includes 4" lift performance coil springs

utilizes the factory connectors so you're back on the road quicker

results in 1" of increased rear lift

Inlet ID: 4"

as well as provide enough fuel to support 750rwhp

Flowmaster American Thunder Cat-Back Exhaust System For 99-07 GM 1500 4.8L/5.3L 2023-2025 Chevrolet Silverado 3500 Includes 4" lift performance coilFor the person who wants the aggressive look of a NASCAR race truck along with all the benefits that a Flowmaster Cat back exhaust system provides. D. O. S. S. (Dual out same side) systems are the perfect choice. The American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. The exhaust system is constructed from 3. 00 inch mandrel bent aluminized steel