2014 Mercedes-Benz S400 Stage 2 ECU Tune – +71HP Performance Upgrade
- Revhigh Performance Tuning
- Jul 1
- 1 min read
Looking to unlock the hidden performance in your Mercedes-Benz S400? This 2014 model received a VAITRIX Stage 2 ECU Tune, delivering a remarkable increase in horsepower and torque while maintaining the smooth, refined driving experience Mercedes-Benz is known for.

Dyno Results
Stock Output
333 HP
48.9 kgm Torque
VAITRIX Stage 2
404.4 HP
66.0 kgm Torque
Performance Gains
✅ +71.4 HP✅ +17.1 kgm Torque

What Does the Stage 2 Tune Improve?
The VAITRIX Stage 2 calibration significantly enhances the S400's performance by increasing torque much earlier in the rev range. The result is stronger acceleration from low RPM, sharper throttle response, and smoother power delivery that continues through the upper rev range.
Whether you're overtaking on the highway or enjoying a spirited drive, the additional power and torque make the vehicle noticeably more responsive and enjoyable behind the wheel.

Why Choose Revhigh Performance Tuning?
At Revhigh, every calibration is developed to maximize performance while maintaining drivability and reliability. Using proven VAITRIX tuning solutions, we help drivers unlock the full potential of their vehicles with dyno-tested results.
Ready to experience the difference?
Contact Revhigh Performance Tuning today to find the right ECU tuning package for your Mercedes-Benz. #MercedesS400 #MercedesBenzPerformance #ECUTuning #DynoProven #RevhighPerformanceTuning #Vaitrix







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