Arlen Ness Big Sucker™ Stage I Air Filter Kit with Synthetic Filter

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
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
Radius air inlet provides maximum performance by providing unobstructed airflow
One-piece aluminum backing plate features patented hidden breather technology
All kits include high-performance filter, backing plate and steel outer cover
All necessary hardware and instructions are included with each kit