Jon - Low impedance injectors are standard on the S12 and S13.
Low impedance injectors require about 4 times the amount of current to drive them. The S12 ECU can handle it (hence why its got a huge heat sink) whereas the S13 ECU is ideally designed to run the lower current, high impedance injectors. Dunno why Nissan just didn't use high impedance injectors but in their infinite wisdom they decided to use the dropping resistors.
These injectors are 550cc.
Kenny - If i can get access to a belt sander I will sand down the cups but it don't look likely.
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