So for my set up i shave yellow top sti injector.....well the problem is the seem to fit..how ever when putting the caps back on and trying screw it in the screws are way to short know....its as if the injector is long then the stock ka injectors .....this is also weird cause i took these injectors out of my blown up sr.....and they fit fine and the screws were normal!!! any ideas .....i bout to get my tune and don't wanna run these injectors if im gonna blow something up !

there is a metal cap on top of the stii injectors that can be removed, i think that may solve your problem