A18770 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 for riders seeking maximum performance gains. This kit features a filter element that is 20% larger than standard Stage I versions, providing a massive increase in surface area for air filtration and flow. The assembly includes a precision-machined billet aluminum outer cover and a dedicated Big Sucker backing plate to ensure a secure and efficient installation on Harley-Davidson models. Arlen Ness engineering focuses on reducing intake restriction to unlock the full potential of the V-twin engine. This complete kit is an ideal choice for high-displacement builds or those looking for an aggressive, oversized intake aesthetic.