K&N 20-21 Chevy / GMC 2500/3500 6.6L V8 Performance Air Intake System

Gain a guaranteed increase in horsepower and torque with a K&N cold air intake system featuring a mandrel-bent aluminum intake tube. Each system is paired with a washable, reusable High-Flow Air Filter featuring oiled cotton filter media. The oversized, conical filter design allows you to go up to 100,000 miles between filter services under normal highway driving conditions. A custom heat shield or air box helps protect intake air from the high temperature of your engine bay, and the entire system can typically be installed in less than 90 minutes. Some intakes are not legal for sale or use on any pollution controlled motor vehicle in California. See the product specifications for CARB status on each part for a specific vehicle.Installation InstructionsInstallation InstructionsUser 1This Part Fits: Year Make Model Submodel 2020-2024 Chevrolet Silverado 2500 HD Custom 2020-2024 Chevrolet Silverado 2500 HD High Country 2020-2024 Chevrolet Silverado 2500 HD LT 2020-2024 Chevrolet Silverado 2500 HD LTZ 2020-2024 Chevrolet Silverado 2500 HD WT 2024 Chevrolet Silverado 2500 HD ZR2 2020-2024 Chevrolet Silverado 3500 HD High Country 2020-2024 Chevrolet Silverado 3500 HD LT 2020-2024 Chevrolet Silverado 3500 HD LTZ 2020-2024 Chevrolet Silverado 3500 HD WT 2020-2024 GMC Sierra 2500 HD AT4 2024 GMC Sierra 2500 HD AT4X 2020-2021 GMC Sierra 2500 HD Base 2020-2024 GMC Sierra 2500 HD Denali 2022-2024 GMC Sierra 2500 HD Pro 2020-2024 GMC Sierra 2500 HD SLE 2020-2024 GMC Sierra 2500 HD SLT 2020-2024 GMC Sierra 3500 HD AT4 2020-2021 GMC Sierra 3500 HD Base 2020-2024 GMC Sierra 3500 HD Denali 2022-2024 GMC Sierra 3500 HD Pro 2020-2024 GMC Sierra 3500 HD SLE 2020-2024 GMC Sierra 3500 HD SLT