Arlen Ness, Stage 2 Big Sucker air cleaner. Smooth

Black anodized Smooth billet aluminum outer cover.
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.
- With Stage 2 cover
- Increases horsepower & torque
- 20% larger filter element than Stage 1
- Patented hidden breather technology
- Pre-oiled high performance cotton gauze filter element
- One-piece aluminum backing plate
- Radius air inlet for unobstructed airflow
- See 959659 for the replacement air filter element only