It's a crime , a dyno that over reads giving over generous stock and thus over generous remapped figures and then to claim the difference is from the lower actual manufacturer figure making the difference seem larger and give them a false market lead against the competition .
As you say there are those that do truthfully exceed manufacturer figures and of course some that are under .
As under did I find out with my 2.1 OM651 in 204hp flavour but with logical reason .