Only other way would be to find a mileage correction company and get them to do it, but I think you would be looking at about ?100 (thats what I was quoted for a pug 306, when the clockset was replaced on that, although that went from 50k down to Ok). Do a google search because there are some about. Only illegal to change if you falsify mileage, i.e. your car has 200k and you change it to 50k!!