K&N large 4-inch carbon fiber Sprint Car style air box includes base and hardware and is built for racing applications where lightweight airflow management matters. Constructed from ultra-light carbon fiber, the air box provides ample airflow for racing needs and accepts K&N washable, reusable filters that can be serviced with K&N cleaner and oil for ongoing use in demanding environments.
K&N Custom Racing Assembly Carbon Fiber 4in Air Box w/ Base and Hardware - Large