K&N XStream® Series Performance Motocross Air Filters

  • Pleated cotton media offers very low restriction
  • Pliable, double-beaded lip for positive base seal
  • Deep pleats provide high dirt & dust capacity
  • Two-piece design eases installation and removal
  • Custom base seal ensures a secure fit
  • Washable/reusable media ensures extra-long life
  • Pre-Oiled and ready to Race!
  • K&N One-Year Limited Warranty

XStream® K&N Motocross Air Filters

Designed to provide increased horsepower & crisp throttle response, these air filters inspire longer moto races! K&N air filters were originally designed for the extreme demands of off road racing. After over 40 years of development and testing, the original design still offers increased performance and excellent protection in all conditions. The Xstream® series high flow air filters are designed to provide high-capacity with very low restriction, resulting in increased horsepower & torque. K&N Xstream series performance motocross air filters are designed with a deep pleated, washable and reusable cotton media that offers a large surface area and longer service intervals.

K&N XStream series motocross air filters are available for the following:
Honda CRF150R / CRF250R / CRF250X / CRF450R / CRF450X
Kawasaki KX125 / KX250 / KXF250F / KX450F
KTM Select EXC 250 / SXF 250 / EXC 450 /SXF 450
Suzuki RM125 / RM250 / RM-Z250 / RM-Z450
Yamaha YZ125 / WR250F / YZ250 / YZ250F / WR450F / YZ450F


K&N Motocross Air Filter HA-4509XD for 2012 Honda CRF450R
K&N Motocross Air Filter HA-4509XD for 2012 Honda CRF450R

K&N Motocross Air Filter Media
K&N Motocross Air Filter Media

K&N Xstream Filter Top
K&N Xstream Filter Top

K&N Motocross Air Filter KA-2506XD for Kawasaki KX250F & KX450F
K&N Motocross Air Filter KA-2506XD for Kawasaki KX250F & KX450F

K&N Motocross Air Filter YA-2506XD for Yamaha YZ125/YZ250 & Suzuki RMZ250/RMZ450
K&N Motocross Air Filter YA-2506XD for Yamaha YZ125/YZ250 & Suzuki RMZ250/RMZ450

K&N Motocross Air Filter YA-4510 for Yamaha YZ450F
K&N Motocross Air Filter YA-4510 for Yamaha YZ450F