Using your K&N air filter is easy. Just take out your old filter from the factory air box and drop the K&N filter in. It's a simple swap that you can do at home. As for maintenance, it's important to clean the filter regularly. When you notice a decrease in performance or when it looks dirty, you can wash it with a mild cleaner. Make sure to let it dry completely before oiling it with K&N filter oil. When oiling, apply it evenly to ensure proper filtration. Remember, don't use harsh chemicals on the filter as it can damage the cotton media. With proper care, your K&N air filter will serve you well for the life of your vehicle.