K&N universal air filters come in four styles – round straight, round tapered, oval straight and oval tapered. All K&N air filters in this section clamp directly to the carburetor throat, replacing the stock airbox and filter element; RC prefix part numbers have chrome end caps; the rest are black rubber (K&N clamp-on filters are not street legal). Pleated design increases surface area air flow. Match the outer diameter (OD) of your carb throat with the inner diameter (ID) of the filter (given in inches and millimeters). This item fits to following bikes. We will accept your request at our earliest opportunity. This includes Republic Of Ireland. Please do not ask us to lower the value of goods this is illegal and we do not want to get involved in this kind of activity.