97-02 M2, 97-98 S1, 97-99 S3, 99-02 X1
Please note that this is a discontinued item that is excluded from exchange or return.
K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle.