Upgrade your heavy-duty truck’s performance with the K&N NextGen Cold Air Intake System, engineered specifically for Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, and GMC Sierra 3500 HD models equipped with the 6.6L V8 Gas engine. Designed to maximize airflow, improve engine performance, and enhance throttle response, this intake system delivers dyno-proven horsepower and torque gains without requiring an engine tune.

The K&N NextGen Cold Air Intake features a high-density polyethylene (HDPE) rotationally molded intake tube designed to increase airflow volume by 83.2% compared to the factory intake system. This improved airflow helps deliver an estimated gain of 20.56 horsepower and 28.1 lb-ft of torque while maintaining factory engine calibration.

This intake system includes an oversized, washable, reusable High-Flow Lifetime Air Filter™ featuring premium oiled cotton gauze filter media. The conical filter design provides increased surface area and improved airflow while allowing service intervals of up to 100,000 miles under normal highway driving conditions.

A custom-designed NextGen hybrid airbox helps protect intake air from high engine bay temperatures while improving airflow efficiency. The semi-enclosed airbox design includes an enlarged fresh air inlet to provide cooler, cleaner air delivery and better protection from contaminants. The complete intake system is designed for simplified installation and can typically be installed in less than 60 minutes.

Performance Features

• Dyno-proven to deliver horsepower and torque improvements on the factory stock tune.
• Estimated horsepower gain: 20.56 HP @ 4633 RPM.
• Estimated torque gain: 28.1 lb-ft @ 2420 RPM.
• Intake airflow gain of 83.2%.
• Improved throttle response and engine performance.
• Enhanced engine sound during acceleration without unwanted drone during cruising speeds.
• Designed to improve airflow for towing, hauling, and heavy-duty applications.

NextGen Hybrid Airbox

The K&N NextGen hybrid airbox features a semi-enclosed design that helps reduce intake air temperatures while protecting the filter from heat and contaminants inside the engine bay.

Features include:

• Enlarged fresh air inlet for improved airflow.
• Improved protection against dirt and debris.
• Reduced exposure to engine bay temperatures.
• Optimized airflow path for improved performance.

Oversized High-Flow Air Filter

The included red High-Flow Lifetime Air Filter™ features premium cotton gauze filter media designed for increased airflow and long-lasting performance.

Filter features:

• Washable and reusable design.
• Oiled cotton gauze construction.
• Increased surface area for improved airflow.
• Radius-entry design for enhanced performance.
• Replacement filter: RU-5302.

Large-Diameter Intake Tube

The CAD-designed large-diameter intake tube is manufactured from high-density cross-linked polyethylene and features strategically positioned airflow channels. This design increases airflow speed and delivers more air to the engine for improved horsepower, torque, and overall efficiency.

Precision Engineering

Each K&N NextGen intake system is specifically engineered for the vehicle application, providing improved airflow performance while enhancing the appearance of the engine bay. The black intake tube finish creates a clean and aggressive appearance that complements modern heavy-duty truck builds.

Simplified Installation

The NextGen intake system features a streamlined design with reduced mounting hardware requirements. Quick-Lock™ technology allows the filter to securely snap into place, while the sealing bead design secures the system with a single hose clamp for easier installation.

K&N Quality and Warranty

With more than 50 years of filtration expertise, K&N air intake systems are trusted by automotive enthusiasts, racers, and truck owners worldwide. The NextGen Cold Air Intake is engineered in the USA and backed by a No-Hassle Lifetime Limited Warranty while maintaining your factory warranty coverage.

Fitment

Compatible Vehicles:

2026 Chevrolet Silverado 2500 HD 6.6L V8 Gas
All Models

2026 Chevrolet Silverado 3500 HD 6.6L V8 Gas
All Models

2026 GMC Sierra 2500 HD 6.6L V8 Gas
All Models

2026 GMC Sierra 3500 HD 6.6L V8 Gas
All Models

2025 Chevrolet Silverado 2500 HD 6.6L V8 Gas
All Models

2025 Chevrolet Silverado 3500 HD 6.6L V8 Gas
All Models

2025 GMC Sierra 2500 HD 6.6L V8 Gas
All Models

2025 GMC Sierra 3500 HD 6.6L V8 Gas
All Models

2024 Chevrolet Silverado 2500 HD 6.6L V8 Gas
All Models

2024 Chevrolet Silverado 3500 HD 6.6L V8 Gas
All Models

2024 GMC Sierra 2500 HD 6.6L V8 Gas
All Models

2024 GMC Sierra 3500 HD 6.6L V8 Gas
All Models

2023 Chevrolet Silverado 2500 HD 6.6L V8 Gas
All Models

2023 Chevrolet Silverado 3500 HD 6.6L V8 Gas
All Models

2023 GMC Sierra 2500 HD 6.6L V8 Gas
All Models

2023 GMC Sierra 3500 HD 6.6L V8 Gas
All Models

2022 Chevrolet Silverado 2500 HD 6.6L V8 Gas
All Models

2022 Chevrolet Silverado 3500 HD 6.6L V8 Gas
All Models

2022 GMC Sierra 2500 HD 6.6L V8 Gas
All Models

2022 GMC Sierra 3500 HD 6.6L V8 Gas
All Models

2021 Chevrolet Silverado 2500 HD 6.6L V8 Gas
All Models

2021 Chevrolet Silverado 3500 HD 6.6L V8 Gas
All Models

2021 GMC Sierra 2500 HD 6.6L V8 Gas
All Models

2021 GMC Sierra 3500 HD 6.6L V8 Gas
All Models

2020 Chevrolet Silverado 2500 HD 6.6L V8 Gas
All Models

2020 Chevrolet Silverado 3500 HD 6.6L V8 Gas
All Models

2020 GMC Sierra 2500 HD 6.6L V8 Gas
All Models

2020 GMC Sierra 3500 HD 6.6L V8 Gas
All Models

Product Specifications

Estimated Horsepower Gain: 20.56 HP @ 4633 RPM
Estimated Torque Gain: 28.1 lb-ft @ 2420 RPM
Air Filter Color: Red
Air Filter Material: Cotton Gauze
Air Filter Outlet Shape: Round
Clamps Included: 5
Couplers Included: 1
Replacement Filter: RU-5302
Clamp Material: Stainless Steel
Clamp Style: Worm Gear
Intake Pipe Material: High-Density Cross-Linked Polyethylene
Intake Pipe Color / Finish: Black
Mounting Hardware Included: Yes
Weight: 16.6 lb (7.5 kg)
Product Box Height: 19.13 in (486 mm)
Product Box Length: 24.38 in (619 mm)
Product Box Width: 24.38 in (619 mm)
Intake CFM Gain: 83.2
Product Style: 50 Series GEN3
TUV Approved (Europe): No
Street Legal In All US States: Not legal for sale or use in California on any pollution-controlled motor vehicle.
California Restricted: Not legal for sale or use in California.
Warranty: No-Hassle Lifetime Limited Warranty

Important Notes

This product is not legal for sale or use in California on any pollution-controlled motor vehicle. Verify local emissions regulations before installation.