Is the rear wing that is sold through the aero parts link from the Acura-TL homepage, the same as the factory wing? I'm speaking specifically of the painted one selling for $279. They note that they are molded ABS plastic. What is the factory one made of? Also, can anybody suggest a place that will install it in the Southern California area, specifically Orange County? It says that there is a self install kit, but I’m not to keen on drilling holes in my TL.