I'm getting my car tuned to 14psi next friday with my 460cc low impedance rx7 injectors. I'm going to tune to 20ish psi at a later date but I'm not sure if I want to get low or high impedance injectors? I was thinking 750cc RC inejctors that are high impedance, this would make the wiring less complicated and I could get rid of my resistor box as well. Are high impedance injectors just as good as low impedance on turbo applications?

 

high impedance are plug n' play in OBD1 engines. Just as good as low impedance, actually better since they're plug n' play.

 

Well since you already have the resistor box wired in I would get the low impedance injectors because they are peak and hold and in general are a bit better and also usually a bit less expensive since they are more commonly used in the aftermarket, but I would like to suggest you look into precision injectors like the 680cc that I have or even their 1000cc they are more than fairly priced and have performed well for me. Good luck with your new tune.