The filter cartridge used for the Active noise filter is made of polyester and it can be cleaned with solvents, gasoline and compressed air. This cartridge has a filtering of particles of more than 10µm (10 thousandths of a millimeter) and it is evaluated as the best compromise between air flow and air cleaning. 10µm value allows also the filtering of the impurities produced from the front brake system: it is usually between 15µm and 30µm and it is know these impurities are very aggressive with the inside parts of the engine. The new cartridge has a reed barrier to modify the air flow and reduce the turbulence inside the airbox. The new inlet pipes have a better Venturi effect with a better performance. - CIK/FIA Homologation: 005-SI-67 Validity 2019-2021 - Colour: Red Body, Black Tubes - Tubes: 30mm