Edelbrock Supercharger E-Force Supercharger System 19-21 GM Truck/SUV R2650 DP3C 5.3LEdelbrock Supercharger System #15665 is a bolt on forced induction kit that features significant improvements for 2019 2021 Chevrolet GMC 1500 series trucks with the 5. 3L V8 engine. This kit is emissions legal in all 50 states and provides a 60% increase in horsepower to 485 RWHP with a 57% increase in torque to 466 ft lbs at the rear wheels when used with the supplied calibration and 4. 00 inch pulley on 93 octane pump gas. An Edelbrock Supercharger