DNA Air Filters - Racing Air Filter for Ducati Desmosedici RR 08-12This filter features a very special "concave" design. This design helps the Ducati Intake Scoop to distribute the incoming air stream efficiently; eliminates the pressure losses and sends a 'linear air stream' to the front & rear intakes simulating the DNA advanced FCd (Full Contour design) effect. Installation of the filter is very easy, simply follow the information that can be found in the Ducati workshop manual. The filtering efficiency is