Arlen Ness Big Sucker Stage 1 Air Cleaner - Smooth - Chrome - Twin Cam (Exc. FBW)

The Arlen Ness 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.

• One piece aluminum backing plate features 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
• Radius air inlet provides maximum performance by providing unobstructed airflow
• All necessary hardware and instructions are included
• Air filters are washable and reusable