In my NA 4B12 I used a 6G75 MIVEC throttle. It is not a direct swap. You will have to eliminate the coolant passes. I just cut off the entire part with an angle grinder.
Also you have to use the plastic part (sorry I don’t know how it’s called in English) from the OEM throttle. To fit it requires a few modifications.
The four screws are bigger in the throttle, I used the Lancer OEM screws. This was two years ago, to this point, zero issues.