It looks like i will be buying a sport hatch 1.9cdti 150bhp. I have seen so many ecu/chip tuning versions that all seem about the same. The question I have is which one is best? any ideas/views or opinions would be appreciated, especially if you have the ecu map your self. Is the Regal (EDS) map the same as the VXR performance centre (88 one? what about the plug and play options? do these create any more black smoke etc?