Installed yesterday. Fitment is great and the quality of the weave is comparable to high end carbon fiber. Step drill bit used to create 15mm outboard holes to use the GM retainers. Also widened the holes next to those with a dremel to enable the spoiler to drop down smoothly.
I had to apply some heat and pressure to the ends of the spoiler after bolting it down, as the tape didn’t catch the trunk surface. With enough pressure, the tape made contact. The thicker tape really helps with this.
My 2 cents on install. You could honestly get away with not drilling and using maybe only a couple of the studs/nuts, if you replace the foam with 3M tape. My last eBay spoiler (great fitment, crappy weave) was held on purely with 3M tape. The stuff is strong, and I’ve used this methodology on my previous M cars and spoilers. Of course I prefer the OEM-like install with the hardware and retainers, but I’m sure there are people out there that would prefer not to drill. There are options.
Btw, I have a few extra sets of retainers. Will likely sell those to anyone interested.
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