Arlen ness Big Sucker Kit Air filterRef : ANS00678A / 10101601

Big Sucker Air Filter Kit by ARLEN NESS (manufacturer part number: 50-331): a vintage-style intake solution with a chrome finish, designed for large touring and custom bikes. The one-piece aluminium backplate incorporates breather technology: each concealed breather is fitted with an O-ring at the cylinder heads and vents into the throttle body, creating a nearly airtight system without external hoses. The Radius air inlet minimises turbulence for optimal airflow to the engine.

• High-performance pre-oiled filter, washable and reusable
• Synthetic multi-layer filter media for effective filtration
• Chrome/silver finish on steel body
• Compatible with OEM air filter cover and water-resistant
• Supplied with all installation hardware and instructions
• Careful manufacturing, simple installation for Twin Cam builds

Designed to optimise airflow and promote more efficient combustion, this kit can help improve engine response and overall performance depending on your machine's tuning and configuration. Primarily suitable for Twin Cam Delphi EFI (2001–2017) and Twin Cam CV carburettor (1999–2006) architectures. Application examples: Harley-Davidson Dyna Wide Glide, Low Rider, or Fat Bob.