Using this Greddy Gracer front lip spoiler is easy. Just install it on your 2006 - 2007 Subaru WRX or STI according to the provided instructions. When driving, you'll notice improved airflow management and potentially better vehicle handling. As for maintenance, regularly clean it with a mild soap and water solution. Avoid using harsh chemicals as they may damage the hard urethane construction. When parking, try to avoid scraping the spoiler against curbs or other objects. If you notice any signs of damage, it's best to get it checked or repaired as soon as possible to keep it working effectively.