A18771 Covers Only for Use on All Big Sucker Stage Ii Kits Stage Ii

The Arlen Ness Billet Sucker Stage II Air Filter Kit is designed to maximise airflow for Harley-Davidson engines requiring increased intake volume. This kit features a filter element that is twenty percent larger than the Stage I version, providing a significant boost in surface area for improved performance. The assembly includes a precision-machined billet aluminium outer cover paired with the signature Big Sucker backing plate. Arlen Ness utilizes either a traditional oiled red filter or a weatherproof synthetic element to ensure reliable filtration across various riding conditions. This comprehensive intake solution replaces the restrictive factory air box with a streamlined, high-flow alternative that reflects the brand's heritage in custom performance parts.