Using your K&N air filter is a breeze. First, open your vehicle's factory air box. Remove the old air filter carefully and then place the K&N replacement filter in its exact position. Make sure it fits snugly. As for maintenance, since the filter is washable and reusable, check it regularly. When it looks dirty or clogged, it's time to clean it. You can use a K&N filter cleaning kit. Wash the filter gently with the cleaner, then let it dry completely. Once dry, re - oil the filter using K&N filter oil. Avoid using any other chemicals or oils as they may damage the filter. And always remember, this filter is built to last for the life of your vehicle, so with proper care, you'll get long - term performance benefits.