K&N Replacement Air Filter (SU-4518XD)

K&N Replacement Air Filter (SU-4518XD)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

The intake tube has an attractive red powder-coat finish that's made to last and it accommodates the factory mass air sensor and EVAP vent line

mandrel-bent aluminum tube air induction system

K&N air filter top plates will securely seal the top of an air filter and add an impressive visual upgrade to your engine compartment

These air cleaner assemblies replace the stock air filter and backplate with an oversized K&N Air Filter and custom aluminum backing plate

High air flow with excellent filtration

They are engineered to handle all grades of synthetic

It's backed by the K&N Million-Mile Limited Warranty

The inner white mesh filter is replaceable

000 miles between filter services under normal highway driving conditions

The air filter can be used for up to 50

More air means more usable power and acceleration throughout the engine’s RPM range

High performance cleaner and degreaser