K&N HA-4509XD

Replacement Filters > Replacement Air Filter
List Price: $131.00
Your Price: USD $84.99

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K&N XStream Series Motocross Air Filters take performance to the next level with the addition of a filter within the filter's top in order to add even more filtration area for high air-flow and capacity. Each filter piece has pleated media which creates a large surface area that provides high airflow and great dirt holding capacity for extreme conditions. The two-piece design eases installation and removal on modern narrow-framed MX bikes. The epoxy-coated aluminum wire mesh, incorporated into a backfire screen, protects the filter element from harmful debris. A custom base seal ensures a precise and secure fit. K&N air filters are washable and re-usable and they come pre-oiled and ready to use!

More Info on K&N Xstream Series Performance Motocross Air Filters
  • Large surface area for long service life
  • Low restriction
  • Washable and reusable
  • Outstanding filtration

Product Specifications

Air Filter ShapeRound Tapered
Filter MaterialCotton Gauze
Height4.5 in (114 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height9 in (229 mm)
Product Box Length9 in (229 mm)
Product Box Width4.63 in (117 mm)
Product StyleUnique Air Filters
Weight1.5 lb (0.7 kg)

Customer Feedback

Be the first to review part HA-4509XD
After all the issues I hear online about K&N, I thought I should just try one out for myself and see what's the real truth.  I noticed a difference right after installation. It seemed to really help out in the low mid range I changed it out from my foam filter after riding for about 30min so I really did notice it once installed.

Thank you!

Blake Weaver

Blake Weaver
this is the BEST stock style filter why do I say that? I have changed many Honda filters on the firewall 1) strong steel body. heavier and thicker metal than auto chains/discount stores. 2) the threads on the input and output are machined very cleanly. 3) durable epoxy coating, thicker than all oem & cheapos. wont rust up easily so why did I take so long the try it? it was really never in stock at auto chain stores. so I decided to order online. im NEVER GOING BACK TO regular replacement fuel filters on my acuras/Hondas don't believe me, try it yourself what more can you ask for? LOWER PRICED than regular filters(and oem), BETTER PERFORMANCE ALSO

Shur Yang
Eastside St.Paul, Minnesota
I use K&N filters in all my vehicles. I had recently purchased a 2015 Ram 3500. Bought the K&N filter for that and noticed an immediate increase in fuel mileage and performance due to better airflow through the K&N filter. & I have K&N on both of my Harley's and my wife's Honda Prelude

Spring Hill, Florida