ARLEN NESS KNUCKLE STAGE 1 BIG SUCKER™, CHROME - 88-up XL SPORTSTER - RED PRE-OILED - 18-759

Big Sucker™ Stage 1 air cleaners are engineered and proven to give your engine maximum airflow for more horsepower & torque. The patented hidden breather backing plate is o-ringed at the heads and exits inside the mouth of the throttle body for a virtually closed loop system, eliminating the need for any external hoses or hardware

• Knuckle Stage 1 Air Cleaner Cover 
• Increases Horsepower & Torque 
• Patented Hidden Breather Technology 
• Pre-Oiled & Synthetic High Performance Filters
• One-Piece Aluminum Backing Plate 
• Radius Air Inlet for Unobstructed Airflow  

PERFORMANCE AIR FILTERS:  

• Each Big Sucker performance filter is handmade in the USA
• Available in red pre-oiled cotton or synthetic filter media 
• Standard red pre-oiled cotton performance filters are made from 4 layers of surgical grade cotton for optimum flow & filtration 
• Synthetics performance filters are made from a black synthetic filter element that is wrapped in a stainless steel jacket. Synthetic filters are water resistant and do not require oil
• All Stage 1 air filters are washable/re-usable, filter tune-up kits are available separately 
  
  NOTE: For '91-'22 XL models with CV carb or Delphi EFI.
  
  NOTE: Will Fit '88-'90 models; breather system is not applicable for these model years.
  

*FITMENT*

 91-UP XL SPORTSTER 

• 1991-up Sportster 883 / 1200  with CV Carb or Delphi EFI 

Fitment Guide

Specs