GIAC do K04 Hybrid software.
Statllers did quite a bit of testing with the GIAC USA guys.
One word of warning though. If you send off your working K04 and the guys fitting the hybrid parts believe that there is too much play in the spindle, you will get back a refusal to hybridise it along with a K04 in several pieces.
Best to source a low mileage K04 and send that off, rather than sacrificially offering the one on the car without a back-up.
John never went with the hybrid mate. He just stuck laughing gas on her and left rippled tarmac around the South Yorkshire area with his 500+lbft
^^^^^^^
What he said