Shipping was timely, installation was easy, and performance is great! I would recommend this filter for a YZ250 all day!
K&N Air Filters were originally pleated to increase surface area and capacity for harsh desert conditions. 40 years later, this same filter design continues to provide low restriction while offering both high performance and capacity. Recently updated with XD Components, K&N's patented XStream® Series Motocross Air Filters feature revised seals, increased pleat depth, and a tri-star injection molded top for increased strength, capacity and performance.
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. K&N air filters are washable and re-usable and they come pre-oiled and ready to use.