Adam brought in his Mercedes C63S pre-facelift  because it wasn’t hitting the power it was capable of. Previous flash tune:  374 RWKW After REVHIGH custom dyno calibration:  421 RWKW 🚀 The results were impressive: Big power gains Stronger mid-range pull Proper, smooth power delivery Watch the video below 👇 to see the full C63S retune in action! Unlike generic flash tunes, custom dyno tuning unlocks the full potential of your engine . Each calibration is tailored to the vehi