The Mercedes-AMG G63 W463  is already a powerhouse straight from factory, but with the VAITRIX Stage 2 performance tune , this luxury SUV transforms into an even more aggressive, responsive, and refined machine on the road and dyno. 🚀 Factory vs Stage 2 Performance Results Stock Output: 571 HP 77.5 kg-m torque VAITRIX Stage 2 Tuned Output: 646 HP (+75 HP gain) 💥 87.8 kg-m (+10.3 kg-m gain) 💥 This is a significant real-world improvement , not just peak numbers, but usable