All-New next generation backing plate design , Increases horsepower and torque, High-performance filters are made from black pre-oiled cotton for the best in airflow and filtration, Aluminum backing plate that features zero flat surfaces, every angle of the intake is designed to promote airflow, One-piece aluminum top filter place with integrated air venturi to direct airflow into the throttle body, Filters are washable and re-usable, Accepts all Ness Stage 1 custom air cleaner covers