Quick view K&N Engineering K&N 20-21 Ford Mustang GT500 5.2L V8 Aircharger Performance Intake - 63-2515 Compare $299.99 A high-density polyethylene (HDPE) rotationally-molded tube helps increase the volume of airflow to your engine, and provides a guaranteed increase in horsepower and torque. These systems are paired with a washable, reusable High-Flow Air Filter... Add to Cart Add to Cart