Big Sucker Stage 2 air cleaners retain all the performance gaining features of the Stage 1 plus a 20% larger filter fore even more airflow. Each Stage 2 features our patented hidden breather backing plate that is o-ringed at the heads and exits inside the mouth of the throttle body, eliminating the need for any external hoses or hardware
- Smooth Stage 2 Cover
- Increases Horsepower & Torque
- 20% Larger Filter Than Stage 1
- Patented Hidden Breather Technology
- Pre-Oiled & Synthetic High Performance Filters
- One-Piece Aluminum Backing Plate
- Radius Air Inlet for Unobstructed Airflow
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
- 20% larger filter then Stage 1
- 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:
- Smooth Stage 2 custom cover
- 99-17 Twin Cam (Exc. FBW & 99-01 FI FLT)
- 08-16 FLT / 16-17 FLST & FXDLS (FBW)
- 91-up XL Sportster
- 93-99 Evo (Evolution)
- 99-01 FI (Fuel Injected) FLT
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