I installed my performance spoiler with 3m tape too. I noticed that the middle of my spoiler has what appears to be a crease or line in the middle of it. Its hard to see, but at the right angle, I can see it. Take a look. At some angles it looks MINT. But as you can see, at a certain angle, I can see a crease down the middle of it. Should I go exchange it?
normal looking at this angle.
crease at this angle