I've personally never used any of the companies I'm about to mention for a remap. All I know is that they have a rolling road and the capability to remap. The first is a new company based in Aberdeenshire called Hypo Tune. They have a brand new dyno and are based in Westhill. Seem to tune a lot of different cars including BMW, VAG etc. The other is a company called PerformanceTek Racing Ltd who are based in Glasgow. They have a rolling road, can remap and have done a lot with Honda over the years. They also run a couple of cars in the UK MINI Challenge as well as looking after a few in the Scottish MINI Cooper Cup.

May be worth giving both of them a call to see what they can do for you.

I have no affiliation to any of these companies, just a few that I've heard about based in Scotland that do what you are looking for.