K&N Series 77 High Flow Performance Cold Air Intake (01-04 6.6L Duramax Sierra 2500 HD)Find parts that fit my vehicle

Performance Enhancement. The K&N Series 77 High Flow Performance Cold Air Intake is engineered to significantly increase horsepower and torque by optimizing airflow to the engine. This upgrade improves throttle response, engine sound, and fuel efficiency, delivering a noticeable enhancement to your driving experience. It replaces the factory air intake components for a direct-fit installation.

Construction and Appearance. This intake system features a mandrel-bent aluminum intake tube with a bright mirrored finish that ensures smooth airflow, durability, and corrosion resistance. It includes an oversized air filter made of oiled cotton gauze designed for high filtration efficiency and reusability, maintaining performance for extended periods.

Installation. Installation requires only basic hand tools and typically takes less than an hour. The system is designed for an easy bolt-on replacement of the factory air filter and intake tube without any drilling or modifications.

Warranty and Application. This product includes a no-hassle lifetime limited warranty, ensuring long-term protection and satisfaction. It is specifically designed to fit the 01-04 6.6L Duramax Sierra 2500 HD for a direct, no-modification fit.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov