When John Cooper Works created their airbox they neglected to use a high flow performance air filter. Unfortunatly the JCW airbox still uses a paper filter element which is very restrictive therby significantly limiting airflow. Our direct fit replacement high flow velocity stack filter installs in 5 minutes an gives you all the benifits of increased airflow and reusability.
The JCW replacement paper filter costs $170 to replace and is not reusable. Our filter is cleanable and will last a very long time if properly maintained.

Kit includes instruction CD and tips on how to increase the JCW airbox airflow even more!

Lifetime warranty with a proven 4-5 HP gain.