2019-2021 MB G63 AMG - M177 ECU Performance Tuning

2019–2021 Mercedes-Benz G63 AMG - M177 ECU Performance Tuning

This M177 Performance ECU Tune is specifically designed for the 4.0L AMG M177 V8 Bi-Turbo Engine in 2019–2021 Mercedes-Benz G63 AMG (W463) models. Unlock the full potential of your G63 AMG with improved horsepower, torque, and overall performance.


G63 AMG M177 Stage 1 Performance Gains:

  • Stock Output: 577HP / 627 ft-lbs of Torque
  • Tuned Output: 670HP / 760 ft-lbs of Torque
  • Gains: +93HP / +133 ft-lbs of Torque

G63 AMG M177 ECU Tune Improvements

  • Increased Throttle Response
  • Boost Level Increase
  • Significant HP and Torque Gains
  • Speed Limiter/Vmax Increase (Note: In some vehicles, this is controlled by the CPC module and may not be adjustable.)

Our tuning process modifies key parameters such as torque limiter maps, boost levels, fuel maps, and ignition timing advance maps. This ensures a safe and reliable increase in performance while maintaining factory fail-safes and limp mode protections. Factory emissions systems remain functional and are not disabled.


M177 G63 AMG Flashing Options

1. Remote Flash with IXI Personal OBD2 Flasher Tool

  • Flash your ECU conveniently from your location using the IXI Personal Flasher tool via the OBD2 port.
  • Note: Not all ECU software/firmware versions are supported for remote flashing.

2. Bench Flash - Remove and Mail in the ECU

  • If your ECU firmware is not supported for remote flashing, you will need to remove the ECU and ship it to us for a bench flash.

Important Notes

  • Vehicle Condition: Gains may vary depending on vehicle condition, maintenance, and environmental factors.
  • AMG S and Performance Models: These models may have smaller gains due to their already high factory output but will achieve similar final HP/TQ numbers as base AMG models after tuning.
  • Emissions Compliance: We do not offer tuning for emissions deletes, and we do not disable catalytic converter or secondary air pump systems.
  • California Restrictions: Tuning services are not available for vehicles registered in the state of California.

Supported Mercedes-AMG Models with the M177 Engine

  • G63 AMG (W463): 2019–2021

Take Your G63 AMG Performance to the Next Level

Experience the true potential of your 2019–2021 Mercedes-Benz G63 AMG with our M177 ECU Performance Tuning. Contact us today to learn more about our tuning options and start your journey toward enhanced power, torque, and driving excitement!


Please print out the tuning form below and mail it in with your ECU. If you're doing a remote flash you can email it.

2019-2021 G63 AMG Tune Selection:: Stage 1
M177 Tune Flash Type: Bench Flash - Remove and Mail in your ECU
In stock
Sale price$715.00

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Mercedes Benz M177 ECU Tuning FAQs

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