I think iv decided to fit an mtx75 box to my zvh turbo. could anyone tell me exactly what needs doing to make it fit, and what i will need, and where from?

also just to make sure, is this a sensible box for 250bhp? if not what would be better, its just within 5months its had 3boxes first was standard rs box, the others were xr3i boxes(could be the problem, but i got them for nothing so couldnt complain).

any help would be great. thanks