The carbon fiber spoiler I had on my BMW had two advantages and not a great example since:
1) It was fully painted to match the BMW alpine white color on the top side and then clear coated. On the bottom side, it was kept the carbon fiber look but clear coated at the paint shop altogether. The carbon side never faded but that may be because the backside is never exposed to much sun.
2) Secondly, this spoiler sat on top of the trunk of the BMW. So unlike the Tesla where it is curved and attaches at two angles, the BMW spoiler attaches more securely by gravity and by a thicker and wider surface area.
Here's a picture it.:
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By the way, here is the pictures of the final install of the Tesmanian matte black spoiler. Initially, I was turned off by the idea of an "ABS spoiler" that was matte black, but I can say the quality is very good. I also figured that since the car already comes with so much matte black of everything else stock like the rear diffuser, the window trim, and my emblems, I just don't see a place for the carbon fiber weave look. Secondly, carbon fiber weave can only be seen up close 5 ft away or closer. Majority of the time, people will just see a black spoiler, ABS matte black or CF black, especially a spoiler that is so thin like on the Model Y.
I don't really care if it fades in 5 years. It is so cheap that in 4 or 5 years, this thing will be like $80 bucks wholesale and one can just replace it again. By the way, I reiterated that I did not use the adhesive promoter. I really don't think it is needed. The provided double sided tape is already quite strong. Clean the surface 3 times over with 70% isopropyl alcohol and do not touch it again with your oily fingers, and it should be good to go.
The matte black spoiler matches the matte black on the emblem and window trim very well.
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