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
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.