DNA Air Filters - Stage 2 Air Filter Cover for Aprillia Tuareg 660 21-24This filter features DNAs Stage 2 kit eliminates the OEM intake snorkel of Aprilia model and offers higher performance and better intake sound. This Stage 2 kit is designed to replace the stock plastic air box intake cover. Combined with the P AP6E22 01 (sold separately) will increase the Airflow, Filtering Efficiency, Power, Torque and Throttle response. The airflow of this new DNA Stage 2 combined ALWAYS with the DNA Stage 1 Air Filter (P AP6E22 01)