Is the little "spoiler" shown in the image below something that was optional on US market Explorers? It's a 1998 model year. I've never seen one with it. I bought one car that was originally sold in Canada and I'd prefer not to do that again (too much rust). And I don't want a cheesy aftermarket add-on. I prefer factory original.

http://images.craigslist.org/00J0J_7...RG_600x450.jpg