HI, the uprated MAP is needed only if you get a remap for higher boost and the fuel map has to be addapted for it by increasing the overboost limit, get standard one Bosch or genuine LR. the MAP reading must be very close to the ambient pressure at idle and rise to at least 230 under full load but max untill the MAP - AAP formula to give you 142 difference which means 1.42 bar boost and that'sthe standard overboos limit