Arlen Ness, Stage 1 Big Sucker air cleaner kit. Custom cover

Plain finish one-piece aluminum backing plate .
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.
- Without cover
- Takes all Arlen Ness Stage air cleaner covers
- Takes a custom round air cleaner cover with central mount hole, minimum ID 6-1/4" (159mm)
- Increases horsepower & torque
- Built-in patented breathing system features hidden channels to prevent the use of unsightly exposed breather hoses and fittings
- Radius air inlet for unobstructed airflow
- Replacement air filter elements 959593 (Black filter) / 959597 (Red filter)