Using your K&N air filter is easy. First, open your vehicle's factory air box. Remove the old air filter and carefully place the K&N filter in its spot. Make sure it fits snugly. Once installed, close the air box. You're ready to go and enjoy better performance. As for maintenance, it's a good idea to check the filter every 10,000 - 15,000 miles. If it looks dirty, it's time to clean it. You can use K&N's filter cleaning kit. Follow the instructions on the kit to wash the filter gently with water and the provided cleaner. After washing, let it dry completely. Once dry, re - oil the filter with K&N filter oil. Be careful not to over - oil it. Remember, always keep your filter clean to maintain its performance. If you have any issues or questions, K&N's customer service is there to help.