I have continued to update the evo pinouts document with as much details as everyone has provided me. I pulled the details from many documented and undocumented wiring diagrams to provide the most complete set of ecu pinouts for the evo ecus from evo4 - evo8, and there is only 1 wiring difference between the JDM and USM versions I have come across in my many conversions of evo ecu upgrades from evo4/5 to evo8 ecus which are reflashable to RalliArt ROMs.
I will keep the latest document and roms up to date here, and also on my website at http://www.limitless.co.nz/EvoScan
I have also started a new document for Subaru ecu pinouts and conversions, I will be posting it on here and on my website at http://www.limitless.co.nz/StiScan