S560 AMG — Stage 2 ECU Tune
- 20% increase in power output to 286 kW
- 13% increase in torque to 630 Nm
- 80 Nm torque gain within OEM transmission limits
- Improved boost control response
- Enhanced fuel system efficiency
- Variable exhaust note control
The M177 responds well to exhaust flow and fuelling adjustments. This build paired downpipes with a remote-controlled variable exhaust and dump valves, then addressed fuelling through high-pressure pump tuning and injector optimisation to support the revised airflow.
The workshop recorded 286 kW at the wheels, up from a baseline of 238 kW, with torque climbing from 550 Nm to 630 Nm on 98 RON. Boost control was tuned to suit the hardware, though specific pressure figures weren't logged.
File focused on maintaining factory drivability while extracting what the revised exhaust and fuel system could support. Suit closed-circuit competition use.
Is the factory high-pressure fuel pump sufficient for this output?
The factory pump was tuned and optimised rather than replaced. Combined with injector tuning, it supported the 286 kW result on pump fuel without requiring aftermarket hard parts.
Does the remote exhaust control integrate with the factory valve system?
Yes. The tune accounts for the variable exhaust hardware and maintains factory-like exhaust management when switched, though specific integration depends on how the workshop wired the system.
What's the headroom on 98 RON at this stage?
48 kW gain represents solid headroom from the M177 on pump fuel with these hardware changes. Further gains would typically require E85 or more aggressive fuelling and cooling upgrades.
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Protunes supplies ECU calibration files exclusively to approved workshops, tuners, and dealers throughout Australia. Platform: Factory.
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