Using your K&N air filter is easy. First, locate your vehicle's factory air box. Open it up and take out the old air filter. Then, simply drop in your new K&N air filter. Make sure it fits snugly and close the air box. That's it! As for maintenance, it's a good idea to check your filter regularly. When it looks dirty, it's time to clean it. You can use K&N's special cleaning kit. Just follow the instructions on the kit to wash and re - oil the filter. When cleaning, be gentle to avoid damaging the cotton media. Also, always make sure the filter is completely dry before reinstalling it. With proper care, your K&N air filter will serve you well for the life of your vehicle.