There is not always any marks on the ecu to show it has been mapped buddy take it out and whip the lid off see if it has a daughter board in it you might have a mapped ecu.
The front there is nothing you can do unless you remove the arch liner then you can bend the tabs that hold it up out the way. Rear can be done but to do the rear well you need to mod the rear bumper mount by trimming it down as much as possible.