what ecu will you run? Most common injector upgrade for 4agte are from 4AGZE(365cc/min), 7MGTE(440cc/min), Mitsubishi VR4(450cc/min), Mitsubishi Evo 3 (510cc/min) and Mazda 13B turbo(550cc/min).
Bare in mind that each of them has different impedance characteristic, you have to make sure your ecu injector driver is support the one you choose.
Cheers
CHB
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