K&N Engineering K&N Custom Racing Air Filter - Rectangular Carbon Fiber 4in Air Box w/ 2.75in Air Horn 100-8593

KN Custom Air Filter

Engine Air Intake Scoop

Light weight yet durable, K&N's Generation 2 Carbon Fiber Air Boxes are a must for any racer currently using traditional multi-Siamese stacks. Constructed from ultra-lightweight carbon fiber these filters provide ample air flow for your racing needs. They come with air horn seals to provide better sealing and easy installation. As with all K&N air filters, Generation 2 Carbon Fiber Air Boxes are washable and reusable. Simply use K&N cleaner and oil to service your filter.

Generation 2 Carbon Fiber Air Box; Incl. Air Horn Seals; For Use w/Traditional Multi Siamese Stacks; H-4.125 in.;