Arlen ness Big Sucker Kit Metacarpal Reinforcement Air filterRef : ANS00530A / 10102477

ARLEN NESS – Big Sucker Air Filter Kit (ref. 18-751)

The Stage I Big Sucker kit with its "metacarpal reinforcement" design offers a robust look and a rethought intake for Harley twins. The CNC machined one-piece aluminium backplate incorporates a hidden breather system: each outlet is equipped with an O-ring at the cylinder heads and opens inside the throttle body, providing a nearly closed circuit without additional hoses. The result is a clean and reliable installation for Vintage/Classic and Touring builds.

• High-performance pre-oiled, washable, and reusable filter — 4 layers of surgical-grade cotton, handmade in the USA.
• "Radius" air inlet for unobstructed airflow and optimised engine filling.
• CNC machined black round body, compatible with OEM air filter cover for a neat integration.
• Supplied with all mounting hardware and installation instructions.
• Designed for Twin Cam Delphi EFI (2001–2017) and Twin Cam CV carburettor (1999–2006).

This Big Sucker is designed for riders who want to combine a muscular aesthetic with high-performance intake: it is engineered to enhance airflow and help increase power and torque without complex modifications. Ideal for Dyna and other compatible Harleys.