BMC Replacement Air Filter   The acquired know-how from the racetracks is directly incorporated into the production of the series filters, to provide the demanding motorcyclist with a product that is tested, delivers performance, and is in a constant state of evolution.   The materials used are the best currently available on the market. The filters are made from a single rubber frame to prevent any breakage. The filtering element is made from a special cotton fabric (4 layers), soaked in a low-tack oil.   It is encased in an aluminum mesh that is treated with an epoxy solution to be resistant to gasoline vapors and oxidation. Additionally, the cotton has the advantage of being washable and reusable.   Due to these features, the BMC sport air filters (replacement air filters) guarantee a higher airflow compared to the original paper filters, a minimal pressure loss of the incoming air, and thus lead to better engine performance.   - Durability: washable and reusable, no replacement needed - Wider filter surface - Maximum air permeability (4 layers of cotton) - Higher absorption and filtration - Better pressure drop ratio - Tested by international testing procedures

BMW Original Spare Part Air Filter Insert Top Brand Quality