ive done a bit of research...
so far found that...
rb20det - high impedience, top feed, 1 hole
rb26det - low impedience, top feed, 1 hole
* to get gtr injectors to work for rb20det u need the resistor pack...
evo - low impedience, top feed, 1 hole.
so just need to know if both gtr & evo injectors sizes.. as in, they come in 2 heights, long or short...
once i know this, i could get thr gtr resistor pack and get evo injectors in the rb20det (550cc goodness)