i would stick with the stage 1 injectors only a very select few have i seen where a ported big wheel'd stocker needs stage 2 injectors.
im using a s-afc2 to tune mine, thats decent for the money. d-tec is a great option, mapclamp is the cheapest but you wont reach the power you want with it, and EMS is the best, on one of our shop cars (downpipe, stock turbo, stage 1 injectors, intake, wastegate,and EMS) we made 310whp
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