I was told by the previous owner 250 and I would say that seems about fair for the spec. I obviously plan to have it remapped up to the higher figure, just was wondering if a cheap intercooler option existed for such a ballpark figure.20bhp is a pretty big increase. I don't think you will gain that sort of increase just by changing to a large IC / CC
It sounds like you have most of the components of a stage 4 anyway. Do you know what power you are currently running?
Sorry for stirring the trouble up again, should maybe be a banned topic until someone comes up with empirical data one way or the other