I grab bedliners when I see them for free!
http://ecomodder.com/forum/showthrea...pan-27181.html
The lower part is a splitter. I think/hope it's keeping air from going under the car and redirecting it to the sides instead. It's the top of a spare bumper cover, which is why it fits so perfect. It was literally made for the car! Notice the extra license plate holes that match the ones on top of the bumper?