The S63 AMG is an extremely powerful car. Even in its stock form, as it is equipped with Mercedes’ almighty M157 5.5 liter twin turbo V8 engine.
By upgrading a few parts of the exhaust and installing a custom Etuners Stage2 ECU calibration, power increases by 75hp at the wheels and a massive 116ft*lbs gain in wheel torque.

Upgrade specifications

  • 98RON fuel
  • Upgraded downpipes
  • Etuners Stage2 ECU calibration

Performance results

  • Maximum power at the wheel: 604.6whp (measured stock 530whp), gains 74.6whp
  • Maximum torque at the wheels: 741.5 ft*lbs (measured stock 625ft*lbs), gains 116ft*lbs

Stock dyno run:

Etuners Stage2 dyno run

For more E63 AMG awesomeness, please visit this link. The newer models are extremely powerful and tunable as well!

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