Mercedes-Benz GT 2017 - 2021 C 4.0 - 557hp

Real standard and upgraded performance figures for the C 4.0 - 557hp engine in the Mercedes-Benz GT 2017 - 2021.

Below: measured output for the C 4.0 - 557hp in the Mercedes-Benz GT 2017 - 2021, standard vs. remapped, in both horsepower and torque.

Horsepower (HP)Torque (Nm)
Standard557670
Stage 1575820
Stage 2584895
Make
Mercedes-Benz
Model
GT
Generation
2017 - 2021
Engine
C 4.0 - 557hp
Fuel type
Turbo-Petrol

Frequently asked questions

Is Stage 1 tuning safe for the Mercedes-Benz GT 2017 - 2021 C 4.0 - 557hp?

Yes — Stage 1 for this engine is a software-only remap calibrated to stay within its stock mechanical limits (turbo, clutch, fueling), so no hardware changes are required.

How much more power does the C 4.0 - 557hp make after tuning?

Standard output is 557 HP / 670 Nm; Stage 1 on this engine typically reaches 575 HP / 820 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a Mercedes-Benz GT 2017 - 2021 C 4.0 - 557hp remap take?

Once your original file is uploaded through the member panel, most requests for this engine are completed within a few hours.

Can the C 4.0 - 557hp be reverted to its original file?

Yes — we keep the original file on record for the request, so the ECU can be put back to stock at any time.