Stage1 tune mazda 3 g120
Hi all, I own a 2017 mazda 3 g120 and I love the car but I would love it even more if I could tune it to 165hp. I read a bit about the topic and many people recommend doing it yourself via the versatuner software. What I noticed in their website however, is that, not only do they unlock the 165hp, they tune it further to gain additional 10-15hp. I would just like to have my car perform just like g165 and to not risk its reliability. Do you have any suggestions as to how to do the whole procedure? Theres a youtube video from Versatuner themselves explaining everything, but I was also wondering whether I could mess everything up and brick my ecu, since this is my first time doing anything like this to my car. Also, how important is charging my car battery during the flash?