The 2022 New MPM ecu chip tuning tool has all GM protocols for Buick Cadillac Chevrolet Chrysler Dongle Ford Hummer Jeep Opel Saab ECM and TCM OBD reading, no need damaos for GM cars. Here is demo example on Caddilac … Continue reading GM ECU Remap with MPM Tuning Tool and Godiag Tricore Adapter