K&N New Sprint Car Air Box Constructed from Ultra Light Weight Carbon Fiber

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K&N has released a composite custom racing assembly product number 100-8578 for sprint car applications. It is an air filtration solution for injector stacks that is large enough to flow enough air and mounts securely to prevent damage during a race.

K&N's 100-8578 Sprint Car Air Box
K&N's 100-8578 Sprint Car Air Box
The 100-8578 is 4.375 inches in height and designed so it does not obstruct the driver’s view. Made with carbon fiber construction, this ultra light K&N sprint car air box is designed to increase horsepower while providing excellent engine protection.

K&N carbon fiber composites have cosmetic appeal and the stiffness to weight ratio that is needed to stay competitive while racing. Carbon fiber composites combine strength, durability and function along with the right temperature. K&N’s advanced composite division has found the right mix with the 100-8578.

The K&N filter element is made of multiple layers of cotton and treated with K&N filter oil. This combination offers high airflow with little restriction, while at the same time provides excellent filtration to keep your engine running strong lap after lap.

K&N sprint car style air boxes are washable and reusable and come with a one-year limited warranty.

Find K&N products for your vehicle using the K&N application search then use the K&N dealer search to find a K&N dealer in your part of the world.

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K&N Engineering, Inc., with headquarters in Riverside, California, has been the world's leader in performance filter technology since 1969, serving the needs of the automotive, motorcycle, marine, industrial and military markets. K&N is heavily involved in nearly every form of motorsports from off-road and powersports to drag racing, stock cars and road racing. For more information about K&N Filters, please contact K&N Engineering, Inc., P.O. Box 1329, Riverside, CA 92502-1329, (800) 213-4182 for a dealer near you, (800) 858-3333 for technical service/questions, (951) 826-4001 Fax, e-mail, or visit