K&N Replacement XD Air Filter – YZ450F (2018–19) Model_Putoline Estertech RS959 Composed from nitrile rubber for

Composed from nitrile rubber for excellent stability and performance

durable surface for the seal to run against

-style cup seal

Wössner pistons are supplied with the appropriate piston rings

Toe-Box: Low-profile design for easy gear shifting

K&N Replacement XD Air Filter – YZ450F (2018–19) Model_Putoline Estertech RS959 Composed from nitrile rubber forK&N off road replacement air filters are ideal for extended use in dirty and dusty off road riding and provide clean carburetion even at high altitude. Generally, 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. Features: Engineered to provide increased horsepower and acceleration. Designed for quick foam or filter servicing after