Very intresting reading stu but may i ask a geuine question?
What is the difference or should i say how is it done properly for the likes of a dpf/egr/rear o2 sensor delete map? Without just doing what these types of companies do and just make sure the eml doesnt come on? I dread to think how many hours you spend figuring out and creating these maps its a real credit to you and thats why you always manage to stay ahead of the rest.