macna cap snapback logo side blue 4Twin Air Dual Stage Filters are the Choice of Top Factory Teams and Riders Worldwide, Dual Bonded Foam Design Filters Out The Smallest Dirt Particles, While Allowing More Airflow THAN Two Separate LAGE LAGER THAN SMALLERS (FLOW BENCH SAMPER), TWIN Air Flow Tests) to change and to INCREASE Dead Air Space Around The Filter for Better Performance, Flat Flat Sealing Ring Securely Seats Against the Airbox, Even in the Worst Riding Conditions