Engine: 6.6L L5P / L5D Duramax Diesel. 2017-2023 Chevrolet Silverado 2500HD 3500HD 6.6L L5P Duramax. 2017-2023 GMC Sierra 2500HD 3500HD 6.6L L5P Duramax. 1x L5P Duramax Throttle Valve Upgrade. ● Upgrade your factory restrictive throttle valve with this high-flow intake elbow designed for the 6.6L L5P/L5D Duramax platform.
