The standard chip will be assuming you're on yellow/standard injectors, which don't flow the same amount of fuel as your greens. This will completely upset the AFR. And we all know what that can mean...

The absolute least that needs to changed is the chip - a stage 3 or 2 one that will put the right amount of fuel (relative to stage 1 or standard!) into the cylinders. Or if you're taking it back to standard, swap the injectors for yellows and put a 2 bar MAP sensor on it.

In addition, the standard chip will cut the boost at 10psi because it's not capable of running higher. You can try and wind the actuator on as much as you want, but the ECU will have the amal valve wide open in the direction of the airbox.