Arlen Ness Method Clear Sucker Air Cleaner Kit - Red Anodized 18-170Forged billet aluminum air cleaner featuring a polycarbonate window allowing you to view the internal working of your air intake system Forged billet aluminum backing plate with a patented internal hidden breather backing plate technology relieving the need for external hoses or hardware for a virtually closed loop system Radius air inlet provides unobstructed airflow into engine High performance filter is constructed from red pre oiled cotton for