Your Vehicle
Mercedes-Benz GT C 4.0 - 557hp
Technical Specifications
Power and torque increase
Stage 1: software remap only, no mechanical changes, fully reversible.
Power HP
Torque Nm
Book your Stage 1 remap
499 € VAT included · pay online, the work is done at the workshop you choose
Power Graph
Mercedes-Benz GT C 4.0 - 557hp: da 557 a 575HP
Remapping Mercedes-Benz GT
MasterTuning is a leader in developing remapping for Mercedes-Benz. La Mercedes-Benz GT C 4.0 - 557hp può passare da 557 HP a 575 HP con un incremento di 18 HP.
The development of each remap is customized by MasterTuning.
- 100% tested and customized files guarantee
- Tested and developed on a 4x4 dyno
- Best performance, within safety margins
- Reduced fuel consumption
ECU Remapping Details Mercedes-Benz GT C 4.0 - 557hp
The Mercedes-Benz GT C 4.0 - 557hp is equipped with a petrol engine that produces 557 HP and 670 Nm of torque in its factory configuration. With MasterTuning's professional ECU remapping, this Mercedes-Benz can achieve 575 HP (+3%) and 820 Nm (+22%).
Our Stage 1 tuning for the GT 2017 - 2021 delivers an impressive gain of +18 HP and +150 Nm, optimizing the petrol engine's performance while maintaining reliability and staying within safe parameters.
The engine code M178 identifies this specific powerplant configuration. The Bosch MED17.7.5 ECU is professionally recalibrated to unlock hidden potential while preserving engine longevity.
With 557 HP from factory, this Mercedes-Benz GT is already a performance vehicle. Our remapping extracts even more potential, delivering exhilarating acceleration and enhanced driving dynamics for enthusiasts who demand the best.
Technical Specifications — Mercedes-Benz GT C 4.0 - 557hp
Factory technical data for the Mercedes-Benz GT C 4.0 - 557hp (2017 - 2021), used by MasterTuning engineers to develop a tailored, dyno-tested remap for this specific powerplant.
| Engine code | M178 |
|---|---|
| ECU / Control unit | Bosch MED17.7.5 |
| Fuel | Petrol |
| Compression ratio | 10.5 |
| Bore × stroke | 83.0 X 92.0 mm |
| Stock power | 557 HP · 670 Nm |
| Remapped power (Stage 1) | 575 HP (+18) · 820 Nm (+150) |
Don't want to touch the ECU?
Rapid Dimsport add-on modules connect to the engine sensors with original connectors: they fit in a few hours and come off without a trace, leaving the factory software untouched. Useful on a leased car, one still under warranty or one you plan to sell soon. Check which ones fit your Mercedes-Benz GT.
Frequently Asked Questions - Mercedes-Benz GT
How much power can I gain from remapping my Mercedes-Benz GT?
With MasterTuning Stage 1, your Mercedes-Benz GT C 4.0 - 557hp can gain +18 HP (from 557 to 575 HP) and +150 Nm of torque. This represents a 3% increase in power.
Is ECU remapping safe for the Mercedes-Benz GT engine?
Yes, MasterTuning's remapping for the Mercedes-Benz GT C 4.0 - 557hp is developed within safe parameters. All calibrations are tested on our 4x4 dyno and stay within the mechanical limits of the M178 engine.
Is the Mercedes-Benz ECU remapping reversible?
Absolutely. The original factory calibration of your Mercedes-Benz GT is always backed up before remapping. The process is 100% reversible at any time.
Will remapping affect my Mercedes-Benz warranty?
ECU remapping may affect your manufacturer warranty. We recommend checking your specific warranty terms. Many of our customers choose to remap after the warranty period or accept this trade-off for the significant performance gains.
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Book your remap or ask for a quote
Stage 1 can be bought online and is done at the workshop you choose; for Stage 2 we send you a quote.
Stage 2 is quoted on request: write to us and we will reply with price and timing.
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