It's a money grab for suppliers of original parts, but it is also a control point and power grab for many authorities. A specific point that interests me is mo

It's a money grab for suppliers of original parts, but it is also a control point and power grab for many authorities. A specific point that interests me is modification of engine control software. This can actually both improve performance and decrease pollution at the same time, and it would be prohibited in the USA. (I'm not in the USA, but I am still concerned by this because the same things tend to float across the Atlantic.)