Using your K&N air filter is a breeze. First, locate your vehicle's factory air box. Open it up and remove the old air filter. Then, simply drop in the K&N replacement filter. Make sure it fits snugly in place and close the air box. As for maintenance, check the filter regularly, especially if you drive in dusty or dirty conditions. When it gets dirty, you can wash it. Use K&N's recommended filter cleaning kit. Wash the filter gently, let it dry completely, and then re - oil it with the K&N filter oil. This will keep the filter performing at its best. Remember, always follow the safety guidelines in your vehicle's manual when working under the hood.