does anyone know if i can use 550 injectors from an RX-7 in my 98 GSR. i'm going to put a turbo on soon. i know you can use DSM injectors, does the same apply to rx-7 injectors?

 

It depends on which 550cc injectors they are. All the t2 injectors are 550cc, but s4 were low impedance and need a resister( like DSM), and s5 (like I have for sale) are high impedance and would not need a resistor box.