Arlen Ness Big Sucker Stage 1 Air Cleaner - Natural - Twin Cam Touring, FLST, FXDLS (FBW)

Arlen Ness 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.

• Features a one-piece aluminum backing plate/carb support bracket
• Eliminates the need for banjo fittings, hoses and filter
• Breather passages exit at the mouth of the carburetor/throttle body, creating a virtually closed-loop system
• Stage I kit includes a high-flow filter and accepts 93-14 oval or round OEM outer cover (unless noted)
• Stage II kit includes a 20% larger high-flow filter and accepts an 8" round Ness or 8" round OEM outer cover
• All necessary hardware and instructions are included with each kit
• C.A.R.B. compliant ref. E.O. # D-639-2 approved for many 97-09 EFI applications.