RENNtech R1 Performance Package | G 63 AMG | W463 | 731 HP / 786 TQ | 4.0L V8 BiTurbo | M177 | MY2019+R1 Performance Package for AMG G 63: ECU Upgrade, TCU, BOV, EVM, BMC Air Filters The Mercedes AMG G 63 (W 463) is powered by the latest V8 BiTurbo engine developed by AMG, the companys Affalterbach based performance division and long fabled engine builder. The result is nothing short of spectacular and the 4. 0L V8 BiTurbo engine is an incredible platform to build performance upon. RENNtechs R1, R2, R3, and R3+ are vehicle specific performance
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