This Stage 2 performance calibration is designed for the Mercedes-AMG GLC 63 with the 4.0L V8 BiTurbo engine (M177). Built on the Bosch MED17.7.5 platform (Star21), it delivers commanding low-end pull and sustained top-end acceleration. The tune enhances throttle mapping, torque request logic, and boost regulation — transforming your AMG into a sharper, more visceral machine while remaining stable for spirited daily driving.