I know this has been asked before (older posts), but from what I could see it was a lot of people who chimed in without actually trying it or had a definite answer. My spoiler came in yesterday and it has two screw holes. (No screws included no 3m on it.) If I use strong 3m on every part that makes contact do you think I'd be alright? I couldn't find any diagrams on drilling, but would pay someone if absolutely necessary for install.