Using your K&N air filter is easy. Just remove your old air filter from the factory air box and drop in the new K&N filter. It's designed to fit right in without any complicated modifications. When it comes to maintenance, since the filter is washable and reusable, you'll need to clean it periodically. Check the filter every few months or more often if you drive in dusty conditions. To clean, use a K&N filter cleaning kit. Follow the instructions on the kit to wash the filter gently with the provided cleaner and then let it dry completely. After it's dry, re - oil the filter using K&N filter oil. Make sure to apply the oil evenly. Keep in mind that you should always use genuine K&N products for cleaning and re - oiling to maintain the filter's performance and the warranty. If you have any questions or notice a drop in performance, don't hesitate to contact K&N's customer service.