On the EVO the car is turbo charger limited.
As far as I can remember even with the RRWEP based old school WI kits regardless of turbocharger its always been the case that you end up turbo limited.
In modern context say in Borg Warner in EFR range, the largest one they make despite running any engine type and specification the critical speed of them is the thing that limits the power is what I have found personally.
In the Life Racing/Syvecs ECU the below is always a control element that is active.