hello. i have found a set of rear louvers on ebay. i am wanting to know if these are the original DE1 rear louvers. the add says they are made by crager. i emailed the seller and he said they come off of an 84 camaro Z28. they look like they are original, but forsure. does anyone know if crager made the original DE1 louvers or did GM make there own. thanks to all. http://cgi.ebay.com/ebaymotors/ws/eB...tem=1825133798