Arlen Ness 18-090 Replacement Air Filter for M8 Round Stage 1 & Method Air Cleaners

The Arlen Ness 18-090 is a high-flow performance replacement air filter designed specifically for Arlen Ness Method and most late model Stage 1 Big Sucker air cleaners on Milwaukee-Eight (M8) motorcycles. Constructed from 4-layers of surgical grade cotton with a black pre-oiled finish, this filter delivers the optimal balance of filtration and airflow for your performance intake system.

Key Features:

• Made from 4-layers of surgical grade cotton
• Black pre-oiled cotton construction for best filtration and air flow
• Washable and re-useable design for long-term value
• Provides added airflow while filtering out harmful debris
• Sold individually

This replacement filter is compatible with Big Sucker Stage 1 air cleaners for M8 models and Method air cleaners. The washable, reusable design allows you to maintain peak performance while reducing long-term maintenance costs—simply clean and re-oil when needed.