This Filter Features DNA®’s Advanced Fcd (Full Contour Design). To Install This DNA Air Filter Follow The Installation Instructions Included In The Workshop Manual. The Filtering Efficiency Is Extremely High At 98-99% Filtering Efficiency (Iso 5011), With 4 Layers Of DNA® Cotton. The Flow Of This New DNA Filter Is +33.21% More Than The Stock Filter! This DNA® Filter Is Designed As A High Flow Air Filter For:’Road & Race Use’. This DNA® Filter Is Designed To Be”spark Safe” For Racing Use On Highly Tuned Engines. Honda: 18-21 CB 1000 R 1000cc. 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.