K&N Racing Carbon Fiber Air Filter Airboxes Give Racers an Edge

Sprint car air box part number 100-8559 with 2.75
Sprint car air box part number 100-8559 with 2.75 inch air horns
In racing, winning comes down to driving skill, how well the vehicle is tuned and the performance products that are used to get every last 1/10th of a horsepower to the wheels. The importance of quality performance parts has contributed to K&N becoming a recognized name in race circles around the world.

2.5 inch air horn seal adapter part of K&N 100-8558
2.5" air horn seal adapter part of K&N 100-8558
K&N has continued to work toward staying at the forefront of racing technology by providing more innovative and adaptable parts. It is out of this dedication that K&N is proud to release the 100-8558 and 100-8559 air box assemblies. Both of these assemblies come with the large washable and reusable 100-8564 air filter, the solid carbon fiber 100-8590 base, 6 spring clips, a set of 4 air horn seals and air horn seal attachment screws.

The difference between the two assemblies is the included air horn seal inside diameters. The 100-8558 comes with four 2-1/2" inside diameter air horn seal adapters and 100-8559 comes with four 2-3/4" inside diameter air horn seal adapters. To use the horn seal adapters, you cut out 4 oval openings, aligned to each set of injector stacks in the solid carbon fiber 100-8590 base and bolt each adapter to the carbon fiber base.

If an increase in airflow is what you are looking for, this high flow air box is your ticket. The cotton air filter medium used in K&N air filters improves air flow with its exclusive woven design. Not to mention, these assemblies are lightweight and extremely durable and a must for any racer currently using a traditional multi-Siamese fuel injection stack setup. In addition, with the two different air horn seal sizes, these two air box assemblies have a greater flexibility and versatility in use, fitment and function.

Carbon fiber sprint car air box base plate part 100-8590. This base plate comes with part 100-8558 and 100-8559.
Carbon fiber sprint car air box base plate part 100-8590. This base plate comes with part 100-8558 and 100-8559.
Sprint car air box part number 100-8558 with 2.5
Sprint car air box part number 100-8558 with 2.5" air horns
Each assembly is constructed from ultra-light weight carbon fiber. A Carbon Fiber Injector Stack Filter provides more than needed airflow while also providing the filtration and efficiency that K&N’s filter have become known for. Once the base and air horn seals have been put in place, simply slip the main filter assembly over the stacks and secure with the supplied spring clip clamps keep the filter securely attached for positive seal and ease of servicing.

These racing air filters are warranted against defective materials or workmanship for one year from date of purchase with no mileage limitation.

Find K&N racing air filters on KNFilters.com. Find products for other vehicles 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.