Tunning a stock ECU

Hello all.

I am new on the ECU tunning.

I previously had an Emerald K6 on a zetec 2.0L naturally aspirated that I played with a bit.

My question is, how can you tune a stock ECU on a car? Is it possible? and what is the hardware and software that is needed? Even if the above are available, is it possible to access the software and edit it? How?

Is there a series of videos or even a single one specifically on this topic on the HP Academy website?

Thanks in advance

Yes, you can tune OEM ECUs, it's called Reflash Tuning. There is a course and several webinars covering this such as these:

https://www.hpacademy.com/previous-webinars/079-introduction-to-reflash-tuning/

https://www.hpacademy.com/previous-webinars/126-how-to-choose-a-reflashing-platform/

https://www.hpacademy.com/previous-webinars/182-finding-the-best-tuning-option-for-your-car/

https://www.hpacademy.com/courses/efi-tuning/