Notes on the fifteen52 cup spoiler install from projectRST:
fitment wasn’t 100% and certainly needed attention and trimming to make fit well. Razor knife and sandpaper did the trick. Mostly the areas of attention were the little fingers around the fog light housing and then some at the bulb housing transition. Also, the product did not come with tape installed. In the packaging they said you needed to use 3M primer #94 as an adhesion promoter at the vehicle as well as the cups themselves. So that was an added cost (10$). Also, the tape they sent was not very strong... and what they sent was not enough to do both cups. So, I had to go to the store and buy some good 3M tape (5$)
All in all if you order these expect to trim them up and make fit well and add aprox 20$ for additional materials needed + paint cost 40$ aprox.