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

Increases Horsepower & Torque
Patented Hidden Breather Technology
Pre-Oiled & Synthetic High Performance Filters
One-Piece Aluminum Backing Plate
Radius Air Inlet for Unobstructed Airflow

California Air Resource Board: Executive Order D-639-9

AIR CLEANER BACKING PLATE:

Made from aluminum and finished to spec by CNC machine
The backing plate's one-piece design features our patented hidden breather technology, each breather is o-ringed at the heads and exits at the mouth of the throttle body. This creates a virtually closed look system which eliminates the need for any external hoses or hardware
Smooth radius air inlet engineered to provide maximum airflow directly into the engine
Available finishes: Standard Raw / Chrome / Black Powdercoat

PERFORMANCE AIR FILTER:

Each Big Sucker performance filter is handmade in the USA
Performance filters are available in red pre-oiled cotton or synthetic elements
Red pre-oiled cotton performance filters are made from 4 layers of surgical grade cotton. Filters are washable/re-useable, filter service kits are available separately
Synthetics performance filters are made from a black synthetic filter element that is wrapped in a stainless steel jacket. Synthetic filters are water resistant and do not require oil, they are also washable/re-useable

AIR CLEANER COVERS AND COMPONENTS:

Accepts Arlen Ness Stage 1 Custom Covers
Accepts most factory single-bolt air cleaner covers (check for proper fitment, factory cover specific fitment air cleaner kits are available)

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BIG SUCKER™ STAGE 1 AIR CLEANER Sale

BIG SUCKER™ STAGE 1 AIR CLEANER - BLACK / Red Pre-Oiled / 99-17 TWIN CAM (EXCEPT: FBW)

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