I am new to coding myself but people have been coding their cars for a very long time now. The good thing is that you can go back in and change settings of it causes a problem. I was nervous at first about coding so I had a guy stand over my shoulder the first time to make sure I followed the right step. My experience thus far is that it is very repetitious once you do it a few times. There are tons of E-sys install instruction out there. The things you need are:
Cable
E-sys software
E-sys launcher
Data files
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