Very interesting, I was under the wrong impression then ! Note, is uprev also that fast even on the pre-03 ECUs ? I think later ones might have a trick to use the CAN bus to accelerate things, but I'm just speculating.Uprev flashes very quickly. Not sure where you heard 20min.
Alright then, does nisprog at least win the dump speed contest ? ~ 95 seconds for 512kB, without using the CAN bus !