Compatible: (5.3L) 2019 - 2021 Chevy Silverado (NEW BODY STYLE) 2019 - 2021 GMC Sierra (NEW BODY STYLE) Does Not fits Crew Cab 2WD with 2-pc driveshaft or trucks with factory dual exit tailpipes. This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations. Introducing our new FlowFX® Cat-back exhaust system for the…