K&N Top Universal Air Filters take performance to the next level . When racing, in any environment, racers need all the protection and airflow they can get. K&N delivers. All K&N universal air filters are constructed with ultra-strong molded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1/16 inch (1.5mm) to fit in-between sizes. K&N universal air filters are washable and reusable.•Pleated filter built in top •Washable and reusable •Low restriction •Clamp-on design Fits KTM 450 SMR from 2008 - 2010