VN V6, V8, and JE camira ECU are all the same. The V6 and HSV V8 have a knock module on the memcal. The knock module is next to useless for any other engine than it was designed for. You use the V8 module when you need to runing 2 coil ie duel channel module. The standard camira one is single chanel. Hope this clarifies some myths.