Utilizing a rotationally-molded high-density polyethylene (HDPE) tube, the 63-1578 K&N Performance Air Intake System ensures an uplift in airflow to your engine, delivering a reliable boost in horsepower and torque. Coupled with a washable, reusable High-Flow Air Filter™ that showcases oiled cotton filter media, its expansive, conical design permits up to 100,000 miles between filter maintenances under standard highway drive conditions. A specialized heat shield defends intake air from elevated engine bay temperatures, with the entirety of the system generally installable in under an hour. Please consult product specifications for CARB status related to specific vehicle parts.