Arlen Ness Big Sucker Knuckle Air Filter Kit Black

• One-piece aluminum backing plate features patented hidden breather technology
• Each hidden breather is O-ringed at the heads and exits at the mouth of the injector/carb to provide efficient engine breathing, eliminating the need for any external hoses or hardware
• Radius air inlet provides maximum performance by providing unobstructed airflow
• Standard red filters are pre-oiled, washable and feature four-layers of surgical grade cotton for optimum filtration and maximum airflow
• Synthetic filters feature a black synthetic material that is water-resistant and never needs to be oiled; just wash and re-use
• All kits include high-performance filter, backing plate and outer cover
• All necessary hardware and instructions are included with each kit

Note: Kits with Synthetic filter are exempt per CARB ref. E.O. # D-639-4, Exhibit A.