If you are the DIY sort of person and don't have the cash to shell out for an upgraded ECU you can always buy a Tactrix cable and use the (free) OpenECU programs (Romraider, ECUedit etc) to make changes to your ECU whenever you change anything or even just to see whats going on with it. Lots of info, maps, change details, support etc available on the OpenECU forums.