Mercedes-Benz ML63 AMG Dyno Results: +62.4 kW and +98.4 Nm After Performance Upgrades

When it comes to extracting more performance from a Mercedes-Benz ML63 AMG, the right combination of engine upgrades can make a significant difference.

For JOB6519, a Mercedes-Benz ML63 AMG, Revhigh carried out a performance upgrade package featuring upgraded downpipes, camshafts, throttle bodies and plates, followed by dyno testing to record the results.

The outcome? A substantial increase in peak power and torque.

Mercedes-Benz ML63 AMG Dyno Results

The dyno graph recorded the following peak figures before and after the upgrades.

Dyno Measurement	Before	After
Peak Power	234.3 kW	296.7 kW
Peak Torque	388.2 Nm	486.6 Nm

The Performance Gains

• Power gain: +62.4 kW

• Torque gain: +98.4 Nm

• Wheel horsepower gain: Approximately +83.7 HP

• Estimated engine horsepower gain: Approximately +105 HP

Using the conversion of 1 kW ≈ 1.341 HP, the measured peak power figures equate to approximately 314.2 HP before and 398.0 HP after.

These horsepower figures are conversions of the dyno's power readings, not separate measurements.

The estimated engine horsepower gain uses an approximate 25% drivetrain-loss allowance. Actual drivetrain losses vary, so this should be treated as an illustration rather than a verified engine output figure.

What Was Upgraded?

1. Upgraded Downpipes

The ML63 AMG received upgraded downpipes as part of its performance package.

Downpipe design and specification can influence exhaust flow and turbocharger response, depending on the vehicle's configuration. The suitability of any upgrade depends on emissions compliance, exhaust design and the intended application.

2. Camshaft Upgrades

Camshafts influence valve timing and engine breathing. Depending on the camshaft specification and supporting modifications, an upgrade can help alter the engine's power delivery and performance characteristics.

Correct component selection and engine calibration are important to ensure the combination works effectively.

3. Throttle Bodies + Plates

The throttle body components were also upgraded as part of this build.

Throttle body and plate specifications need to be matched to the engine's airflow requirements and supporting hardware. The overall result depends on the complete setup rather than one component alone.

The Results: More Peak Power and Torque

Following the upgrades, the recorded peak power increased from 234.3 kW to 296.7 kW, delivering a gain of 62.4 kW.

Peak torque also increased from 388.2 Nm to 486.6 Nm, representing an improvement of 98.4 Nm.

That's a meaningful increase in the recorded peak figures for this ML63 AMG.

It's worth noting that peak torque was recorded at slightly different engine speeds before and after the upgrades, so the torque gain compares the maximum recorded values rather than a like-for-like RPM comparison.

Looking to Upgrade Your Performance Vehicle?

Every performance build is different. The right modifications depend on the vehicle, its condition, supporting components and your performance goals.

At Revhigh Performance Tuning, we work with performance-focused builds and upgrade combinations designed around the vehicle and its application.

Whether you're considering exhaust upgrades, engine hardware or performance tuning, getting the setup right is an important part of the process.

Interested in upgrading your vehicle? Get in touch with Revhigh Performance Tuning to discuss your build and explore suitable options.

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