Alright so I took a risk and ordered some china exhaust tips.
This is what I went with, I think black/blue/gold will compliment the white/blue theme of the car nicely.
$177 shipped from Alibaba for all 4 of them.
https://www.alibaba.com/product-deta...6680IUuqLi&s=p
My (genuine BMW) black grille set and black M2 badge shipped today so I'll be getting those soon and ill be sure to post some pictures of the installs.