Using the K&N air filter is easy. Just remove your old air filter from the factory air box and drop in the new K&N filter. Make sure it fits snugly. When it comes to maintenance, you can wash and reuse this filter. Every 50,000 to 100,000 miles, depending on your driving conditions, it's a good idea to clean the filter. Use a K&N filter cleaning kit, follow the instructions on the kit, and let the filter dry completely before oiling it again. Remember, always use K&N filter oil for proper performance. Avoid using sharp objects on the filter as it can damage the cotton media. If you're not sure about any step, you can always refer to the K&N website or contact their customer service.