Arlen Ness Big Sucker Stage I Air Filter (manufacturer part number: 18-457)

The Big Sucker Stage I kit from Arlen Ness is an intake designed for touring and cruiser motorcycles that seek a robust and durable solution. Its design incorporates a "Hidden Breather" backplate and concealed breathers equipped with O-rings, which pass through the mounting plate and exit into the throttle body via proprietary tubes. The upper aluminium cover, with integrated studs and directional venturi, promotes a smooth airflow without obstruction.

• Filtration surface: offers over 200% more surface area compared to the original filter
• Filtering media: surgical-grade cotton, pre-oiled, washable, and reusable
• Material: aluminium body and cover, natural silver finish
• Design: Stage I with a conical base for optimised filtration surface
• Compatibility: accepts OEM outer cover
• Kit contents: one-piece support plate, breather tubes, performance filter, cover, gaskets, oil reservoir, and hardware

Designed to fit Road Glide platforms and other Harley-Davidson touring models, this kit focuses on quality materials and meticulous design to optimise air intake while remaining easy to maintain. Ideal for discerning riders who want a reliable and long-lasting component.