Spectre 9904 Cold Air Intake for 01-04 Chevy/GMC 2500-3500 6.6L Diesel Truck

Vehicle Fitment

• 2001-2004 Chevrolet Silverado 2500 HD (Truck, 6.6L V8 Diesel)
• 2001-2004 Chevrolet Silverado 3500 (Truck, 6.6L V8 Diesel)
• 2001-2004 GMC Sierra 2500 HD (Truck, 6.6L V8 Diesel)
• 2001-2004 GMC Sierra 3500 (Truck, 6.6L V8 Diesel)

Fitment Notes

• Direct-fit application for 6.6L V8 Duramax diesel engines (LB7/early series).
• Not compatible with gasoline V8 or non-diesel variants of these trucks.

Features

• High-flow cold air intake designed to improve torque and horsepower by reducing intake restriction. :contentReference[oaicite:0]{index=0}
• Washable, reusable red performance air filter included for long service life. 
• Clear anodized aluminum intake tube for strength and airflow efficiency. 
• Black powder-coated heat shield helps block hot engine air from the intake stream.
• Stainless steel worm gear clamps for secure, corrosion-resistant installation. 
• Mandrel-bent design maintains constant diameter for smoother airflow. 
• Includes all necessary couplers, clamps, and mounting hardware for OE-style fit. 
• Cold air intake enhances throttle response and overall engine performance. 

Specifications

• Part Number: 9904
• Intake Tube Material: Clear anodized aluminum
• Filter Type: Washable, reusable high-performance air filter
• Clamp Material: Stainless steel worm-gear
• Heat Shield: Black powder-coated where applicable
• Fitment: Direct-fit for 2001-2004 GM 2500/3500 diesel trucks
• Approx. Install Time: 45-90 minutes
• Warranty: Typically 90-day manufacturer coverage

Included Components

• 1x Clear anodized aluminum intake tube
• 1x High-flow washable performance air filter
• 1x Black powder-coated heat shield
• 4x Stainless steel worm-gear clamps
• 1x Rubber coupler
• All necessary brackets and mounting hardware

Product Description

The Spectre 9904 Cold Air Intake is a performance-oriented intake system engineered specifically for 2001-2004 Chevrolet and GMC 2500/3500 diesel trucks with the 6.6L V8 Duramax engine. By replacing the restrictive factory air intake, this kit increases the volume of cooler outside air entering the engine, which can lead to improved torque, horsepower, and throttle response. The included washable, reusable high-flow air filter helps trap contaminants while maintaining superior airflow compared to stock components. 

Constructed with a clear anodized aluminum tube and protected by a powder-coated heat shield, the 9904 intake system is built to withstand daily driving conditions while optimizing performance. All required clamps, couplers, and mounting hardware are included for a straightforward direct-fit installation. Whether you're upgrading for towing performance or everyday driving response, this intake delivers a cost-effective performance enhancement for your diesel pickup.