Got an 03 plate 1.8T Cabriolet with 60K miles. I am thinking of getting it remapped as my other half has a 3 Series BMW which is quicker and I cant be having that. Is this viable, I have seen increases from 163BHP to 200ish BHP for about the £400. What should I get checked first and what should I be aware of. And does anyone know any places in the East Midlands area that do it??