i cut all the mfi wiring out of my loom now ive gone efi. I started by sliting carefully through the electrical tape and removed it all but then put little bit of masking tape round parts of the loom to keep it together. I then started at the 2 ecu plugs. I literally cut them off then followed each individual wire pulling it out of the loom. Some will go to fuse box, some will pass through fuse box to go to things like fuel pump pink relay. Does the new management loom have a fuel pump relay? If so u can do away with pink relay completely. Hope this helps a little. Any other questions just ask.