With Mpps I have written several ecu of the genre without ever having had any problems.. then the risk c'? always.. but you have the option? of it with the modal?t? recovery on mpps..
the time at 85% it works fine, Marelli Mjet I made with this program and should be fine now..
The EGR excludes perfectly on this ecu..
as for me, if you have done all the mods that you have described you can write it down quietly..