Using this K&N air filter is super easy. First, open your vehicle's factory air box. Then, simply remove the old air filter and drop in the K&N filter. Make sure it fits snugly. As for maintenance, it's recommended to clean the filter every 50,000 miles or so, depending on your driving conditions. To clean it, use K&N's special filter cleaning kit. Wash the filter gently with the cleaner, let it dry completely, and then re - oil it. When handling the filter, be careful not to damage the cotton media. If you notice a significant drop in performance or a dirty appearance before the 50,000 - mile mark, it's a good idea to clean it earlier. And always keep the filter protected when not in use to avoid collecting dust.