I run a Pimp ECU and like all EFI tuning they need a wideband O2. Some oxygen sensors are designed to run through your factory HEGO harness, most are independent of it. Make sure you do your homework.Well I'm not sure what the capabilites of the sct are but I'm going to stick the car in closed loop and tune using a wideband. If sct cant do it, ill pick up a tweecer or whip up a megasquirt, because the car is going to be big single turbski.