Testing my 2021 Chevrolet Silverado 1500 RST 6.2L in some 0-60 and 1/4 mile runs vs a 2019 Denali 6.2L. Beat the Denali by 1-2 truck lengths every run. Both trucks have Intakes and Exhaust. 4 degrees outside with a 1900DA at 2200ft above sea level.