When I received the Carbon Miata LED tail lights I was quite happy with the fitment. I had heard that Carbon Miata products can be a bit hit and miss. I chose the carbon not the fibreglass for a better finish even though I may get them colour coded now that I've put them on the Garnet Red.
I wrote to Marc at Carbon Miata with some constructive criticism that I pass on here.
There are a few installation recommendations I'd like to make.
1. Supply the securing nut
2. Waterproof tape to block the holes left exposed by original mounting points.
3. Provide a grommet to seal around the wiring loom.
4. A rubber seal around the tail light
5. Make sure the rectangular reflector is squarely positioned. One of mine wasn't.
6. It may be too late to change the mound but the area where the screw attaches could have been bigger.
All that being said, I'm very happy with the look and function.
Mine were supplied in December last year.