Arlen ness Big Sucker Stage I Air filterRef : ANS00302A / 10100179

Big Sucker Stage I Air Filter - ARLEN NESS (Manufacturer Ref: 18-505)

The Big Sucker Stage I kit from Arlen Ness provides an aesthetic and functional intake solution for Twin Cam mounts. Designed around a single-piece aluminium backplate with an integrated breather, this pre-oiled and washable round filter combines a natural finish and robust materials for a vintage/classic look suitable for touring and long-distance rides.

• Configuration: Complete intake kit with O-rings at the cylinder heads and at the injector/carburettor outlet — eliminates the need for additional hoses.
• Filter: Pre-oiled red elements, washable, made of four layers of surgical-grade cotton for meticulous filtration and optimised airflow.
• Compatibility: Designed for Twin Cam Delphi EFI (2001–2017) and Twin Cam CV carburettor. Only accepts round Arlen Ness® Stage I covers; compatible with OEM filter cover.
• Materials & finish: Natural aluminium plate (silver), Stage I finish, classic round shape.
• Included: All necessary mounting hardware and instructions for a neat installation.

Useful reference for Dyna owners and other Harley Twin Cam models (e.g. FXDWG, FXDL, FXDF) seeking a reliable Arlen Ness-style intake that is ready for installation.