I've never had mine off, but I'd guess you just drill the holes where the recesses are under the trunk lid. They're all there on your bubble butt. Just figure out from the spoiler which ones you need, then put some silicone caulking around each hole (top side) before you set the spoiler down and bolt it. Should be fairly straightforward.

Ill just have to drill oversized holes so I can make sure I get it strait eh? I know Im gunna **** up

dude, settle down, nervousness isn't going to help.

I can find a girl to do it for you if you want. Maybe a 13 year-old? Lilpooky! Sweetie, can you help out one of Dad'* IDIOT friends?

On the serious side, drill UNDERSIZED holes to start (pilot holes) and have a helper (cuz you have no 'friends') hold th spoiler in place and see how close you came. Then increase the size of the holes properly, making any adjustments as you go. It'll be alot easier than you think. I know it'* freaky drilling holes in painted body panels, but it'll work out just fine.

Yeah Im just a lil nervous... wouldnt you be ??

Here'* a pic of when I took mine off so you get an idea where the holes are

So what kinda sealant should I use just a silicone??

Since you may want to pull it in the future for cleaning (the whole point of those pics originally) I would recommend window caulk. It'* waterproof, but it also peels off easily if necessary. Mine has little rubber or silicone discs that fit around the bolts.

wow thats alot cleaner them what was under my girlfriends spoiler on her grand prix i forgot to get a pic cuz it was mold it was dirt it was just nasty.

Mos, your spoiler is different than his. I believe he'll have more holes than you.