This product is legal in California only for racing vehicles which may never be used, registered or licensed for use upon a highway.
K&N RK Series High Flow Air Charger Intake Kit For Harley
The custom built K&N RK Series Intake provides an aggressive appearance and an increase in horsepower over stock with the K&N High-Flow air filter that is designed for performance.
Features:

Custom aluminum throttle-body mounting plate

Mandrel-bent aluminum high-flow intake tube

Includes complete breather assembly and mounting hardware

Made in the USA
Note: These RK series intakes are exempt from CA Emissions regulations via CARB E.O. D-269-55 Appendix A, and are street-legal in all 50 states as declared by K&N.