Expected gains of +18 BHP and +150 Nm torque
Get Your Free Quote ↓Considering an ECU remap for your Mercedes-Benz GT C 4.0 - 557hp? A Stage 1 remap can take this 2017 - 2021 petrol engine from 557 BHP to 575 BHP and from 670 Nm to 820 Nm of torque (naturally aspirated). This engine scores 4.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Mercedes-Benz GT can achieve.
The Mercedes-Benz GT C 4.0 - 557hp is a 4.0L naturally aspirated petrol engine producing 557 BHP and 670 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 575 BHP and 820 Nm — a gain of around 18 BHP (3%) and 150 Nm (22%).
This engine has limited remap suitability, with gains weighted towards torque — you will notice the difference most strongly in mid-range pulling power and in-gear acceleration. The tuning headroom is classified as moderate, based on the percentage gain available from the factory output.
Considerations: Naturally aspirated engine: gains are usually limited; results vary widely.. High tuned torque: check transmission torque capacity and service history.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method. We recommend discussing your specific vehicle with a qualified remap professional.
| Engine | BHP | Gain | Torque | Gain | Score |
|---|---|---|---|---|---|
| 4.0 - 476hp | 476 → 575 | +99 | 630 → 820 |
| +190 |
| Moderate (5.5/10) |
| Roadster S 4.0 - 522hp | 522 → 575 | +53 | 670 → 820 | +150 | Moderate (5/10) |
| S 4.0 - 522hp | 522 → 575 | +53 | 670 → 820 | +150 | Moderate (5/10) |
| R 4.0 - 585hp | 585 → 660 | +75 | 700 → 850 | +150 | Moderate (5/10) |
| Black Series 4.0 Bi-Turbo 730hp | 730 → 790 | +60 | 800 → 1040 | +240 | Good (6.5/10) |
Get a personalised remap quote for your Mercedes-Benz GT. We'll connect you with a trusted professional in your area.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method.
We recommend discussing your specific vehicle with a qualified remap professional before proceeding.