Hello, brother, I also repair cars. I understand that EFI can theoretically be changed. But it is indeed a bit unrealistic if we change it ourselves. Cars themselves are affordable, but the same cannot be said for motorcycles. The first accessories you need are FAT complete circuit, FAT injector, throttle body, EFI controller, temperature sensor, etc. It seems that someone sells these things. I advise you to buy a car directly if you want to get into EFI now. It’s not very expensive either, because current modification technology and accessories are not very skilled.