[Lukas]

I would just like to say that you need to change 4 values at one time:
1) The amount of fuel.
2) The amount of air.
3) ignition advance angle.
4) fuel injection time.

To do this you do not need to have specialized knowledge, but to do it the way it should be done you need to at least read any book on tuning internal combustion engines, and preferably have practice from a tuning workshop in any other case the engine or its components will be damaged, because it works in a system of communicating vessels and cheating in the way of distorting the real parameters is a BIG mistake a simple example.
Give someone a mask of oxygen, but the indicator clock on the cylinder cheats and understates or overstates the real value and the person using the cylinder will either suffocate or the pressure will burst his lungs and the same is true in this case cheating the value harms the engine as knocking combustion will occur, the engine will run very well, but after some time it will fall apart 30 euros costs injection map and not knowing any tuner this is the only solution and would like to remind that if someone overclocks the engine himself and it gets damaged, probably his EGO will not allow him to admit his mistake, so I would advise to approach garage specialists with detachment.