Flowmaster American Thunder Cat-back Exhaust SystemThis Flowmaster American Thunder cat back dual exhaust system for the 2019 2023 GM Silverado Sierra 1500 (new body style) trucks with the 6. 2L engine and factory dual exhaust, is perfect for the person looking for an aggressive sound level outside the truck, with a moderate interior tone and all the performance benefits you would expect from Flowmaster. This emissions legal bolt on system fits all 6. 2L Crew Cab with 5. 5 ft and 6. 5 ft beds, and all