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

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  • $619.99
  • Regular price $1,123.49


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.