Arlen Ness Big Sucker Stage 1 Air Kit – Black Backing Plate – Air Filter

A HIGH FLOW air filter kit that will fit under the original oval airbox cover!! Performance whilst retaining that STOCK LOOK!


Part No : 18-570

Note: Does NOT fit 58mm Throttle Body or bikes with H-D 103” engines

All-in-one backing plate features a built-in carb support and built-in breather tunnels at each head to decrease crankcase pressure.

Each tunnel exits at the mount of the carburetor to create a virtually closed loop system

Breather features O-ring banjo bolt seals and a radiused intake manifold. No oil hoses, no oil fittings, no leaking and no mess

Stage I kit features a Team Ness High-Flow filter that accepts all 93-up oval or round O.E.M. outer covers

All kits include a Big Sucker aluminum backing plate, Team Ness High-Flow air filter, chrome banjo bolts for Twin Cam and 93-Up EV2 Big Twin, simple instructions and all necessary hardware

Included Items:
(1) Air cleaner element
(1) Backing plate
(1) Cover plate
(1) Air filter gasket
(3) Backing plate mounts
(2) .875OD x .510ID x .030 thick washers
(4) banjo bolt O-rings
(3) 1/4-20 x 1 in. set screws
(3) 1-20 x 1/2 in. button cap screws
(2) Banjo bolts
(1) Tube 242 blue locktite