STAINLESS WORKS: 2020-21 Chevrolet Silverado HD 6.6L Long Tube Header Kit (Factory Connect) chin lip Incorporated into the shroud is

Incorporated into the shroud is six 6) rubber check valves which open at high speed

The cooler tubes are larger in diameter than the factory tubes to reduce clogging

This system is not compatible with factory receiver (tow hitch)

This CTS V package is the cream of the crop on the stock Eaton 1740 supercharger

Kit contains non-adjustable elastomer bushings

STAINLESS WORKS: 2020-21 Chevrolet Silverado HD 6.6L Long Tube Header Kit (Factory Connect) chin lip Incorporated into the shroud isUpgrade to Long Tube headers on your 2020 21 Chevy Silverado or GMC Sierra HD with this system from Stainless Works. Unleash that 6. 6L motor with 1 7 8" primaries that flow into a 3" collector with an integrated merge spike. This system comes with high flow cats and a Y pipe for a simple bolt on install. Out of the box this system fits the 6. 6L gas motor in both 2 wheel and 4 wheel drive. It fits all cab bed configurations and will connect to the