Using your K&N air filter is easy. First, locate your vehicle's factory air box. Open it up and remove the old air filter. Then, simply drop the K&N filter into the air box and close it back up. It's that simple! As for maintenance, the K&N filter is washable and reusable. When it gets dirty, you can wash it with the K&N filter cleaning kit. Just follow the instructions on the kit. Make sure to let the filter dry completely before reinstalling it. Also, remember to re - oil the filter as per the instructions. This will keep it working at its best. One important thing to note is to always use genuine K&N cleaning and oiling products to ensure the filter's performance and longevity. With proper use and maintenance, your K&N air filter will serve you well for the entire lifespan of your vehicle.