Using your K&N air filter is easy. First, make sure your vehicle is turned off. Open the factory air box and remove the old air filter. Then, simply drop in the new K&N filter. Close the air box securely. When it comes to maintenance, it's recommended to check the filter regularly, especially if you drive in dusty conditions. You can clean the filter using a K&N filter cleaning kit. Just follow the instructions on the kit. After cleaning, re - oil the filter properly before reinstalling it. Keep in mind that the filter is designed to last the lifespan of your vehicle, but proper maintenance will ensure it performs at its best. And don't forget, it's covered by K&N's 10 - Year/Million Mile Limited Warranty.