K&N KN-401 Oil Filter

K&N Filters KN 401 Motorcycle Oil Filter , black

K&N Filters KN 184 Oil Filter

K&N Powersports Oil Filter Cartridge 60x37mm compatible with Suzuki (KN 137)

K&N Powersports Oil Filter Cartridge 55x56mm compatible with Kawasaki (KN 123)