Big Suckerâ„¢ 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
- Smooth Stage 1 Air Cleaner CoverÂ
- Increases Horsepower & TorqueÂ
- Patented Hidden Breather TechnologyÂ
- Pre-Oiled High Performance Filters
- One-Piece Aluminum Backing PlateÂ
- Radius Air Inlet for Unobstructed Airflow Â
California Air Resource Board: Executive Order D-639-12_R-01
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