Using this spoiler is easy. First, clean the area on your Subaru WRX or STI where you want to bond the spoiler. Then, apply the bonding agent as instructed and attach the spoiler firmly. For the best result, make sure the surface is dry and free of dust. As for maintenance, you can wash it with regular car shampoo during your normal car wash. Avoid using abrasive cleaners as they might damage the white gel - coat. If you notice any loose parts, check the bonding and re - apply if necessary. Just remember, this spoiler is made to last, but proper care will keep it looking great for a long time.