I have some 95 cobra R replicas on my car and the DD lip on my rear wheels is staring to show signs of fading. The wheels are siver with a polished lip, what can i use on the DD lip to help bring back the shine? Are these polished lips clear coated? Do I need to have them sanded down and re cleared or can I save them myself? They are not bad yet, I wanna stop it before it becomes noticable