I am car mechanic,before this course I was forced to just copy solutions that I didn’t fully understand but I always wanted to learn how it works in the software of the control unit, this course taught me a lot, it moved me a few levels higher, most importantly I also understood many other things about engine mechanics, I definitely recommend this course even to mechanics who do not plan to modify the software.
In this course is everything explained clearly,best are tip and tricks,this never tell you anyone.
I am definitely not stop here,of course i will continue in courses.
Thank you
I had been looking for a course like this for many years. I thought no one wanted to share the kind of information I learned in Tuner Guild. No matter what your level is, everything is explained clearly, step by step. This fundamental course opened my eyes, and now I can better understand the code behind how ECUs work.
Hello, good afternoon. I’m Victor Manriquez from Puerto Montt, Chile. I’m an automotive diagnostics and ECU reprogramming technician with experience in programmable injection systems and various electronic programming, such as airbag key programming and modules in general, more closely related to chiptuning. I was very eager to learn about reverse engineering in this course. I came to the course with little knowledge since what’s available online is scarce, so this was the best and safest option. For a long time, I had many doubts about how to enter instructions into ECU firmware, which was the initial impetus for taking this course. I’m very happy with it now because I’ve managed to understand how map instructions are structured and work. It’s also given me the push to move forward and try to create my own functions within firmware. So, I’m very pleased with what I’ve learned and would recommend it to all my colleagues who want to learn. See you soon! Happy to be on the second course about putting what I’ve already learned into practice. Thank you.
This is a great course, and everything is explained step by step. At the beginning, I felt it was difficult to understand, but once you understand the logic behind the process, the lessons become much more approachable. The platform is very easy to use, and whenever you have doubts or questions, Thomas and Stanislav reply quickly.
My name is Marek and I run a small automotive workshop focused mainly on automotive electronics and diagnostics.About 6 years ago, I started working with emissions system modifications and chiptuning. In the beginning, my workflow was simple – I used to send files to external tuners for modification and then flash them into ECUs. Later, I bought WinOLS and started copying and transferring modifications between firmware files.Over time, I became more interested in understanding why and how these modifications are actually done. I started studying modified firmware files, comparing changes, and trying to understand the logic behind ECU operation. Even though I invested a lot of time into it, I felt like I was not progressing as much as I wanted.I started looking for quality learning materials, training courses, guides, and technical information. Most of the training I found was disappointing – after purchasing, there was very little explanation and mostly just demonstrations of modifications on specific ECUs without explaining the underlying principles.Later, I found Grubo o chiptuningu videos on YouTube. I started supporting the channel and then discovered their website, tunersguild.com, where they offer various courses focused on chiptuning and reverse engineering. After thinking about it for a long time, I decided to purchase the Diesel and Petrol courses in Polish and later the Diesel course in English.Today, I can honestly say that I do not regret this investment at all – in fact, I plan to buy more courses in the future.The quality of the courses is at a very high level. Everything is built systematically and logically, not based on blindly copying modifications. I especially appreciate the teaching methodology – each topic is explained thoroughly and clearly. They even create custom Excel calculators for precise calculations of different parameters to ensure that AFR and other values are accurately calculated for every engine operating condition. This approach impressed me a lot – it is not just about editing maps, but about understanding relationships and creating modifications based on real calculations and engineering logic. For me, this is a completely different level compared to anything I had seen before.The biggest change for me was understanding ECU logic and the principles behind creating modifications. After completing the courses, tuning became much easier because now I work with understanding instead of trial and error.Today, I can professionally modify firmware for most ECUs, I understand much better what I am changing and why, and most importantly, I became independent – I am no longer dependent on external tuners or ready-made solutions, but I can design, calculate, and create my own modifications.I recommend these courses to anyone who wants to learn chiptuning properly, systematically, and move from copying modifications to truly understanding and working professionally.I am really glad that I found this website and decided to invest in these courses. They are truly at a professional level, I learned a lot from them, and they significantly helped me improve. Today I can perform modifications with much more confidence, understanding, and at a professional level. Most importantly, I became independent and can rely on my own knowledge and calculations in my work.