What attaches to the bottom of the fron bumper? Under the spoiler thing? I have screws and pieces of plastic, but nothing else...

ummm the air dam?

Ya, I'm guessing the air dam as well. When I bought my car I didn't have the air dam, just pieces of plastic wth screws in it, basically what was left of the air dam from a previous owner. When I replaced my bumper I got a new air dam, looks nice

Yeah, under the air dam...what attaches there? As in bracing?? And where does it attach to?