This ECU EFI ignition box is a reliable solution for many vehicles with a 50cc GY6 (139QMB) Euro4/Euro5 EFI injection engine manufactured after 2018. It is specifically designed for the Rongmao control unit, called MT5. With this ignition unit, you can adjust the ignition curve of your vehicle and remove the factory speed limit of 25 km/h.The ECU is easy to install, as it requires no training or motor testing. All you have to do is replace it with the original Rongmao ECU. Note that it is not suitable for Euro4/Euro5 carburettor engines and should only be used as a replacement for the Rongmao ECU.Suitable for many vehicles with 50cc GY6 (139QMB) Euro4/Euro5 EFI injection engineEasy exchange without training or motor testerRemove the speed limit of 25 km/hEspecially for Rongmao control u.
