Power Save Racing have released their well known air filters for the RB One. The filters are made in Germany from a special foam and are precision cut to 1/10th of a millimeter to ensure a perfect fit. The filters feature increased mass for improved airflow and better dust protection and come in a set of 6 or 12 with 45ml or 90ml of air filter oil respectively.
Source: PSR [power-save-racing.de]