Using this K&N air filter is a breeze. First, locate your vehicle's factory air box. Open it up and take out the old air filter. Then, simply place the K&N filter in the same spot. Make sure it fits snugly. As for maintenance, it's important to check the filter regularly. If it looks dirty, you can wash it. Use a K&N filter cleaning kit and follow the instructions on the kit. After washing, let the filter dry completely before oiling it with K&N filter oil. This will keep the filter performing at its best. Remember, avoid using harsh chemicals or rough cleaning tools as they can damage the filter. Also, always refer to your vehicle's manual if you're unsure about any step.