This conversion utility was jointly developed between FrozenMist and www.mk5cortinaestate.co.uk to aid you in configuring your vehicle to get the most out of it. To the best of our knowledge it provides a good quality of accuracy but we do advise that you should always double check your results to avoid any problems. We always welcome any advice/experience that people can give us to help us improve on these utilities so please contact either Mike or myself using the links below if you have any contributions.