For 91-20 XL W/CV Carb/Delphi EFI. TURBINE AIR CLEANERS. Black Ops. Exposed filter design offers enhanced airflow. Backing plate promotes smooth airflow into carb/throttle body. Built-in internal crankcase breathers. Available in chrome, black, Contrast Cut™ and Black Ops™ finishes. High-volume K&N air filter. Laser-engraved center nose cone. All mounting hardware included. Made in the U.S.A. TURBINE AIR CLEANERS. Exposed filter design offers enhanced airflow. Backing plate promotes smooth airflow into carb/throttle body. Built-in internal crankcase breathers. Available in chrome, black, Contrast Cut™ and Black Ops™ finishes. High-volume K&N air filter. Laser-engraved center nose cone. All mounting hardware included. Made in the U.S.A. - Part Number - 1010-0964