Same-day shipping cutoff: Noon Pacific Time

Our offices will be closed on Tuesday, December 24 and Wednesday, December 25 for Christmas. We will be back on Thursday, December 26. Happy Holidays!

Air Filter, K&N

CRF150F '03 - '25 CRF230F '03 - '25
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
  • Increased air flow over the stock air filter
  • Designed to increase horsepower and throttle response
  • Designed to fit inside the factory air box
  • Larger surface area over foam filters which offers longer service intervals in dusty conditions
  • Four layers of premium cotton gauze provides outstanding filtration
  • Washable & re-usable, never wears out
  • One filter will last the lifetime of your bike
Ships in 3-5 business days
$82.95