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ENGINEERING THE FUTURE OF PERFORMANCE ™
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Mercedes-Benz

M157 ECU Tune
Purchase M157 ECU Tune
  • SKU: M157_ECU_Tune

    M157 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

  • $1,999.99

  • CARB EO: D-691-1
  • 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 715
Weistec Torque 777
CARB Exempt ID D-691-1
Manufacturer Weistec
Street legal in all the US States Yes
Engine Family M157
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year make model trim engine
2020 Mercedes-Benz SL63 AMG Base (R231) Twin Turbo 5.5L V8 (M157)
2019 Mercedes-Benz SL63 AMG Base (R231) Twin Turbo 5.5L V8 (M157)
2018 Mercedes-Benz SL63 AMG Base (R231) Twin Turbo 5.5L V8 (M157)
2017 Mercedes-Benz SL63 AMG Base (R231) Twin Turbo 5.5L V8 (M157)
2016 Mercedes-Benz SL63 AMG Base (R231) Twin Turbo 5.5L V8 (M157)
2015 Mercedes-Benz SL63 AMG Base (R231) Twin Turbo 5.5L V8 (M157)
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ECU Tuning Process: How do I get my ECU tuned?

As the global leader in Mercedes Benz AMG Tuning, Weistec Engineering sets the performance standard for bi-turbo M157 performance calibration. Designed in-house by our expert tuning staff, our M157 ECU tune has surpassed the 600 wheel horsepower mark on a completely stock vehicle with no other modifications. This tune is also 100% street legal!


CARB EO# D-691-1

With a keen understanding for optimal running conditions for the M157, we have revised many features of the factory ECU programming which creates an astounding crank horsepower and torque increases on California pump 91 octane fuel all while being street legal.

The tune can be installed by an authorized Cypher Pro Dealer or simply shipping the ECU to our Southern California Facility.

Key Features:
  • Increased Wheel Horsepower

  • Increased Wheel Torque

  • Eliminate Top Speed Limiter

  • Improved Throttle Response

  • Optimized Boost, Fuel and Spark

  • CARB Legal

  • All OBD Monitors Function as Stock