I got a 2012 Holden VE Commodore (E39 SIDI PCM). SPS is hopeless. Got a faulty injector driver, got a used PCM not realising I can't flash it.......I know HP Tuners does a VIN Change but I think it's just software if I recall not a EPROM change.
I figure if your software unlocked the ECU to write your tunes, your probably able to upgrade your software to support EPROM reading and writing properly?
GM is getting worse with their SPS and really we need HP Tuners if possible to help cover programming stuff...... even as far as cloning each device from one to a replacement would be good.....
It's another service you could charge for so...