K&N Air Filter HA-4099

Honda 400ex all model years

K&N Replacement Air Filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high altitude. As a rule, no jet changes are required with just a K&N filter element. K&N replacement air filters are washable and reusable and provide high air-flow with excellent filtration.

Use with Outerwears Pre-Filters 10-1008-01 or 20-1008-01