The K&N Generation 2 carbon fiber air box (large) with a 2.50‑inch air horn is a lightweight, durable intake solution for racing applications using multi‑Siamese stacks. Constructed from ultra‑light carbon fiber for high airflow, the box includes air horn seals for improved sealing and easier installation. As with other K&N filters, the element is washable and reusable; service is performed using K&N cleaner and oil for continued race use.
K&N Custom Racing Assembly Generation 2 Carbon Fiber Air Box - Large w/ 2.50in Air Horn