A user named Joe Servo on the diesel stop came up with it. It involves opening up your IDM, changing ONE surface mount transistor, and that bumps the output voltage to 140volts, instead of the factory 110v.
His current prices are somewhere in the 300+ range for a 2 cent part and maybe 15 mins of time.
I think even bob riley has jumped on the IDM mod wagon and is giving kickbacks to Joe for the idea.
Everytime someone asks how to do it, there is this HUGE hushup and a couple ppl get defensive and say it was Joe's mod and he should have it all to himself.
Me, Im a big fan of free for everyone and one of these days I might have an IDM modded and then take pictures.
benefit? not 300 dollars worth, thats for sure!!!!