I'd have thought so certainly need to be able to program the ECU. And if you're like me and don't have a clue about mapping I'd leave it for the professionals. But if you have a laptop and relevant software with a USB cable that connects up you can do it from home. I know a Lawyer in his retirement does it from home for people for £150 a remap. I wouldn't use him though not with my car I'd rather have someone that does it for a living.