biosehnsucht wrote:series 4 or 5? I thought it was s4 that was 550cc low impedence, and s5 went to high impedence
Series 4 use the low imped & 5 the high, if they are a purple headed injector they are generally the low, if they are red or pink, they are the high's.
GTR Skyline 440cc injectors bolt straight in.
I found to fit my 550 RX7 injectors in, I needed to slightly bore out the injector boss.
Has anyone else had this epxerience??