I traded e-mails with Joe about how best to mount the spoiler.
He notes that, should you ever need to remove the spoiler so to remove the rear bumper, insert a putty knife and slide it along so to break the double sided tape. To reinstall, use new tape bought from a hardware store.
I really like this spoiler. It is extremely high quality and looks great bare without the need to paint it, as you may wish.
