Conversion x15 2250 - 2350

[Goody68]

Hi, I was reading this thread and am looking to do an engine swap like this. I have a 2011 ISX12/11.9 CM2250 and am looking at installing 2016 ISX12 CM2350 X102. So from what I've seen on this post I can do this and still use my CM2250 ECM. What kind of programming would have to be done as you mention and where could someone get this done. Could you give me a little more detail about this part of the swap. Thanks