ARLEN NESS Big Sucker™ Stage I Air Filter Kit — Chrome, Round, Fits '88–'90 and '91–'22 XL (CV carb or Delphi EFI) – 88-04, 06-22 Sportster

The Stage I air cleaner delivers increased horsepower and torque through a high-flow, four-layer surgical-grade cotton filter.

One-piece aluminum backing plate uses hidden breather technology; each breather is O-ringed at the heads and exits inside the throttle body mouth for a virtually closed-loop system, eliminating the need for external hoses or hardware.

The pre-oiled, washable filter is reusable and handmade in the USA, and all necessary hardware and instructions are included for a straightforward installation.

• Radius air inlet provides unobstructed airflow for maximum performance.
• Performance filter uses four layers of surgical-grade cotton for effective filtration.
• Will fit '88–'90 models (breather system not applicable) and '91–'22 XL models with CV carb or Delphi EFI.

Follow the included instructions and service the pre-oiled filter as recommended to maintain peak performance. 🔧🧼