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both galletto and k-tag will work, but you CANT DO IT through obd2 plug, you have to disassemble ECU and hook it up using BDM
to copy ecu you have to open them and do programming through BDM port. if you want to do chip tunning, galletto can work with obd2but remember theres a difference, copying ecu its reading and writing COMPLETE content of mpu,flash and eprom, programming through obd2 port modify only PARTIAL content of flash and eeprom, so if you switch ecus between cars, your car will not start !!!!