5.7 to 6.4 swap- Displacement Setting on 5.7 pcm

I know I?ll get an ABS code if I change the displacemet setting from 5.7 to 6.4.

But the ABS module is the same in both cars.

So I wonder, if anybody has tried to initialising the ABS with AlfaOBD again and get it working with the right setting.

The reason for my interest is, I m not able to get the SRV working over the ECM.
AlfaOBD is able to trigger the SRV and its working properly by testing.

So I think the basically trigger for activation in the PCM is not in HPTuners and the "useless" software switch but via a basic setting like chassis type (manufactory setting for equipment setting) or maybe the displacement.

I set the SRV to not equipped in HP.
After this, AlfaOBDis not able to get control of the SRV.
So it seems to be the rpm control, wich do not trigger the SRV ?