a gamble try to gamble smart. ZXTUNER is a Z32 owner and seems to know a lot about using alternative injectors as opposed to the convention upgrade of Nismo 555 and Border 850's. I was actually contemplating going that route, by which I mean using ZXTUNER's injectors for my build. If used that style of injector to work in conjuntion with a custom TD-04 kit/ECU/Subaru injectors a buddy got from Japan. Everything seemed to work well together, plus the spray pattern on those injector and the '94+ injectors is much better to the stream spray pattern the 90-93 injectors seem to have. Just a thought, do your research, and good luck.