Hi LeudZ! Short and flush: I want to upgrade an Opel Omega B MV6 engine with 155 kw to the control standard D4. Unfortunately I have no plan at all what I need, or where I get what is necessary for the upgrade…. As far as I know, the x30xe “from the house” brings a D3 standard, but since I have an engine conversion into another vehicle, theoretically the old control standard of the vehicle still applies where the x30xe MV6 is located inside…and that would be the standard low pollutant E2 so e uro 1…so SATTE 450 TEUROS in the year…and here the dog is buried About helpful tips and also tricks I would be VERY DANKBAR!!