Arlen Ness Big Sucker™ Stage 1 Air Filter Kit – ’01-’17 Twin Cam EFI & ’99-’06 CV Carb – Black
- Features a one-piece aluminum backing plate/carb support bracket with patented hidden breather technology and radius air inlet
- Breather passages exit at the mouth of the carburetor/throttle body, creating a virtually closed-loop system
- Kit includes high-performance filter, backing plate and steel outer cover
- All necessary hardware and instructions are included with each kit
- California Air Resource Board: Executive Order D-639-12_R-01














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