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Mercedes-Benz

M256 ECU Tune
Purchase M256 ECU Tune
  • SKU: M256_ECU_Tune

    M256 ECU Tune

  • Gains are at the engine or "crank". Actual gains are dependent on the model, model year, fuel octane, engine health, and environmental conditions. Learn More

  • $2,000.00

  • Prop 65 warning
    Warning

    This product can expose you to chemicals including carbon black, silica - crystalline, formaldehyde, and lead which are known to the State of California to cause cancer, and lead, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Weistec Horsepower 540
Weistec Torque 566
Manufacturer Weistec
Engine Family M256
Stock Horsepower 497
Stock Torque 476
year make model trim engine
2020 Mercedes-Benz GLE53 AMG 4MATIC (V167) Turbocharged 3L I6 (M256)
2020 Mercedes-Benz CLS53 AMG 4MATIC (C257) Turbocharged 3L I6 (M256)
2019 Mercedes-Benz CLS53 AMG 4MATIC (C257) Turbocharged 3L I6 (M256)
2018 Mercedes-Benz CLS53 AMG 4MATIC (C257) Turbocharged 3L I6 (M256)
2020 Mercedes-Benz E53 AMG 4MATIC (W213) Turbocharged 3L I6 (M256)
2019 Mercedes-Benz E53 AMG 4MATIC (W213) Turbocharged 3L I6 (M256)
See more
ECU Tuning Process: How do I get my ECU tuned?

The Weistec M256 ECU upgrade for the inline 6 cylinder 3.0 Liter engines provides substatial gains across the entire powerband.   With an increased yet still flat powerband to Redline, this ECU Tune creates a much quicker, much more responsive yet predictable blast to drive in any situation.

 

 


KEY FEATURES:

- Increased Horsepower and Torque

- Improved Throttle Response

- Optimized Fuel, Spark, and Boost

- Removed Speed Limiter