As said realy, Its a few years old but has had very little use, Basicaly i asked a lad i know about WMI and he said "ive got a second kit same as mine " It works off a boost preasure switch? Do they all? Im guessing this time of year its not realy needed? Am i right in thinking that the car will need mapping to use it?The reason ive stayed away from it is... i was told there are no gains to using just water and if the methmix runs out the car is likely to get damaged? I know alot of this will have been covered within another thread but most i looked for just explained the problems some kits have had.