Weistec M177 ECU Tune




All 2020 models require bench flashing at this time.

The M177 engine is a potent powerplant.  Through rigorous testing, on both the street and dyno, the Weistec M177 ECU Upgrade reliably extracts massive gains in the mid range of the powerband as well as substantial gains in the top end making it a top performer in all driving situations

Stock vs Westec ECU and Filters


Weistec M177 ECU Power 

What does all this mean to you?  More power, sharper throttle response, and a complete focus on the driver makes this the perfect addition to your AMG for a much more enjoyable experience for you. 

Watch a Customers First Test Drive Reaction


Key Features:

  • Eliminated Top Speed Limiter

  • Improved Throttle Response

  • Optimized Fuel, Spark, and Boost

  • Substanital Horsepower and Torque gains with just Air Filters

  • Even larger gains with Air Filters and Downpipes  

*Power gains vary based on model, modifications, fuel, and running conditions.
W1 Power Gains

W2 Power Gains