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

The Big Sucker™ Stage I Air Filter Kit improves throttle response and airflow for a noticeable performance gain. 🌬️

Each hidden breather is O-ringed at the heads and exits at the mouth of the injector or carb to provide efficient engine breathing, eliminating the need for external hoses or extra hardware.

A radius air inlet delivers maximum performance by ensuring unobstructed airflow to the filter element.

The one-piece aluminum backing plate features hidden breather technology for clean routing, and all necessary hardware and instructions are included for a straightforward installation.

Will fit '88-'90 models; breather system is not applicable for these model years. For '91-'22 XL models with CV carb or Delphi EFI.