All in all good product and would reccomend i bought my 12 gli used and for whatever reason it didn’t have the spoiler

Spoiler came with just enough tape to make 2 rounds on the spoiler and fit like a glove

Had some doubts about it as the underside of the spoiler had some imperfections but the foam 3m tape took care of that

Instructions were a little more than i needed for this as there didnt need to be any drilling but i assume that the they are just the instructions they put with all their products