BMC Racing Filter   In addition to the standard filter version, BMC has developed another type of filter.   This is the "Race" filter, which maintains the same shape as the standard filter but is constructed from filter material that allows for increased airflow compared to other filter systems, while still retaining its filtering effectiveness.   The BMC "Race" filter is designed for those who are not satisfied with the normal performance of their motorcycle but instead modify the engine and the control unit to achieve increased power. The "Race" filter can be recognized by a yellow stripe.

BMW Original Spare Part Air Filter Insert Top Brand Quality