I'm about to log my car to verify as logs show everything, but before I do I thought I would ask a quick question.
I have my b6 a4 with a f21 franker turbos which raises a dumb question, but let's ignore that for now. Let say I'm requesting 200 load in kfmirl, which is usually 20 psi on a k03 if everything else is set up correctly obviously. Now I install say a gt28 which can easily make 200 load.

1: If I keep the same mapping and swap turbo will me7 raise boost until 200 load is made which could be made at 16psi for example. I don't know there actual flow so don't quote me, it's an example.

Or

2: the Ecu will reach 20 psi as it did on the k03 and just shut the throttle plate to cause a restriction which makes it reach 20psi yet moderates how much air is flowing?

This is saying everything is correctly modified pids throttle body maps ect.

I did some reading and my thinking was way off. thanks for the quick info