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K&N High-Flow Off-Road Air Filter for CRF450R 03-08
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K&N High-Flow Off-Road Air Filter for CRF450R 03-08

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    Product Information

    K&N High-Flow Off-Road Air Filter for CRF450R 03-08

    * OEM replacement filter designed to fit inside the factory airbox.
    * Larger surface area over foam filters, offers longer service intervals in dusty conditions.
    * Four layers of premium cotton gauze provides outstanding filtration.
    * Designed to increase horsepower and throttle response.
    * Developed with a sealing bead precise to its application.
    * Epoxy-coated aluminum wire mesh incorporated into a back-fire screen to protect the filter element.
    * Pre-oiled and ready to race!
    * Cleans up easily with K&N filter cleaners; sold separately.

    Part# HA-4503
    • Product ID: 101861
    • Manufacturer: K&N
    • Manufacturer Part#: HA-4503XD
    • Sold As: EA
    • Fits
      • Honda CRF450R 2002
      • Honda CRF450R 2003
      • Honda CRF450R 2004
      • Honda CRF450R 2005
      • Honda CRF450R 2006
      • Honda CRF450R 2007
      • Honda CRF450R 2008
    • Condition: New, unless otherwise noted.
    • is an authorized K&N dealer

    Learn more about K&N

    K&N Engineering
    In the early 1960’s, K&N Engineering was founded in Riverside, California. In 1969, K&N invented the reusable high flow cotton air filter and has been perfecting the technology ever since. Currently with a 10 building infrastructure and spreading across nearly 400,000 square feet, K&N is one of the world's leading manufacturers of washable performance air filters and air intake systems. As a well-known filtration company, K&N sells air filters, oil filters, and air intakes in over 30 countries.

    K&N’s Million Mile Limited Warranty offers a replacement warranty for road going OE Replacement Air Filters that have been purchased from authorized retailers such as

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