same here ,,i run blue sti subaru injectors as well...565cc...i got them second-hand from a subaru forum and got them cleaned and flow tested....they are a lot of imitation cheaper ones online, so be careful if you go this route....I got some Subaru pink injectors. They pretty much fit with some minor mods.
The blue ones fit too with similar mods. They are about 550cc ish from memory.