R32 GTR injector specs

Hi.

I have what I have been told are a set of R32 GTR injectors. How can I tell if they are or not? What is the part numbers or the R32 GTR injectors? What colour toprs are the meant to be?

Cheers

When I pulled mine out, they were totally black, they also (I think, was a while ago) said Denso on them, or maybe those are the ones I put in.....I know they were all black though :)

Hope this helps