K&N Universal X-Stream Clamp-On Air Filter (RX-4870)

K&N Universal X-Stream Clamp-On Air Filter (RX-4870)K&N XStream Top Universal Air Filters take performance to the next level with the addition of a filter within the filter's top adding more filter area for higher air flow and a longer service interval. The XStream Air Filter provides awesome air flow and outstanding filtration. When racing, in any environment, racers need all the protection and airflow they can get. K&N delivers. All K&N universal air filters are constructed with ultra strong molded

Installation couldn't be easier

reusable High-Flow Air Filter™ featuring our premium oiled cotton filter media

Bottle is labeled in German

Melting snow just beads off instead of soaking the filters

K&N intakes are designed to dramatically reduce intake restriction allowing your engine to inhale a larger amount of air than the factory air filter assembly

High air flow with exceptional filtration

Each 57-series OEM air box intake system is designed for specific vehicle applications to ensure a precise fit

Free-flowing aluminum tubes

K&N Stubstack for Holley 4150/4160 Series Carburetors

The K&N® Air Oil Separator protects the engine and intake tract from blowby by capturing the oil in our industry leading high capacity reservoir

The 63-1147 air intake comes with a K&N high-flow air filter which is protected from the elements with an enclosed filter housing

K&N's Generation 2 Carbon Fiber Air Boxes are a must for any racer currently using traditional multi-Siamese stacks