by S60r » Thu Jul 02, 2020 5:59 am
They are the same engine running different stages of tune but I would be wrong to say I knew the answer to your question.... I doubt that has been tried - ever! All remap files are the original files with certain areas tweaked up (that is put very simplistically). No one would have a complete new file for the ecu, they keep the original and remove limiters and advance timing,fueling etc while keeping the basic original file.
The 125 and 155 map to the same level with most tuning houses and their files so why would you want a lesser Ford file? Use van tuner on here or get it remapped and let the van be all it can be.
I have had good results with bluefin from superchips if you want to try it yourself without using a file supplier and have the ability to return to stock anytime you choose.