From what I understand most cf parts, outside of F1 manufacturers that make their own, are made in Czechoslovakia - in one town where there's more than 20 manufacturers. It's an expensive and laborious endeavor to manufacture your own parts, which means it's tough to replicate an original part down to the clip-tabs - the part I'm referring to is the Rear Undertray for the 959. The original plastic part has tabs that mate with the light housing that keep the 2 parts together. You won't find a cf part that's that precise because it cost too much make it that precise. Which brings me to
@jleosnow 's response - pick one cf part and purchase it from the 20 different manufacturers and more than half of them will be off a bit, most will fit different and a couple or three will be nearly identical. The fiber cloth used is probably the same, so the look of the weave will be the same, but the attention to detail will all be different.
I chose to purchase from Motocomposites because they offer a comparable product to Shift-Tech for less, and offer more products. 100% cf parts only for me - there's several other pieces on my bucket-list that I still need to get from them

btw...