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ENGINEERING THE FUTURE OF PERFORMANCE ™
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Mercedes-Benz

M113 5.4L ECU Tune
Purchase M113 5.4L ECU Tune
  • SKU: M113-ECU-Tune

    M113 5.4L 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

  • $499.99

  • 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 385
Weistec Torque 404
Manufacturer Weistec
Street legal in all the US States No
Engine Family M113
Stock Horsepower 349
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year make model trim engine
2007 Mercedes-Benz C55 AMG Base (W203) NA 5.4L V8 (M113)
2006 Mercedes-Benz C55 AMG Base (W203) NA 5.4L V8 (M113)
2005 Mercedes-Benz C55 AMG Base (W203) NA 5.4L V8 (M113)
2008 Mercedes-Benz SLK55 AMG Black Series (R171) NA 5.4L V8 (M113)
2007 Mercedes-Benz SLK55 AMG Black Series (R171) NA 5.4L V8 (M113)
2006 Mercedes-Benz SLK55 AMG Black Series (R171) NA 5.4L V8 (M113)
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 The M176 engine is a potent powerplant.  Through rigorous testing, on both the street and dyno, the Weistec M176 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 M176 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. 

*Power gains vary based on model and modifications.

Watch a Customers First Test Drive Reaction

ECU Calibration Process: How do I get my ECU Calibrated?

Key Features:

  • Eliminated Top Speed Limiter

  • Improved Throttle Response

  • Optimized Fuel, Spark, and Boost

  • +68 Wheel Horse Power +80 Wheel Torque Peak Gains with Air Filters

  • +97 Wheel Horse Power +114 Wheel Torque Peak Gains with Air Filters and Downpipes