They are Carbon Fiber I think and they make them and from what I hear they are superior to OEM things maybe prices drop after initial offering not too sure as it's not my operationI don't get it? Looks like they are selling the OEM from GM. Splitter at 3,505 CAD and side rockers at 4,044 CAD for a total of 7,549 CAD. Why would I buy it from them at a premium instead of the GM parts counter that will also include installation?