K&N Custom Air Filter KE-3225The K&N E 3225 fits some Screaming Eagle intakes with a standard teardrop housing. This filter is designed to provide low restriction and increased performance while providing excellent engine protection for your Harley. When its time for cleaning, this air filter is washable and reusable. It comes pre oiled and ready to install. Features: Designed to increase power. Pleated media provides a large filtration area, offering long service intervals.