Just installed it
Masking tape to protect paint from the sawing action with your choice of dental floss, fishing line. I used wrapping ribbon
What is left after you remove the spoiler, tape that is very hard to remove.
Surface cleaned amazingly clean, I had planned to use Goo b gone with a heat gun. Heat gun did not help much, goo be gone was only good when the residue was thin. What worked very quickly was 3M adhesive remove with a plastic razor blade. It made quick work of the tape.
Mounted spoiler! IB CRT line is very subtle.
Was thinking red or some other color would have stood out more but like the subtlety