Mercedes-Benz GT 4.0 - 476hp Remap

Name: Mercedes-Benz GT 4.0 - 476hp ECU Remap
Brand: Mercedes-Benz

Expected gains of +99 BHP and +190 Nm torque

Data under review — The figures shown for this engine variant are currently being verified. They may be updated as we refine our data.

BHP+99 hp (21%)

Standard

476 hp

Tuned

575 hp

Torque+190 Nm (30%)

Standard

630 Nm

Tuned

820 Nm

Suitability

Moderate (5.5/10)

Gains Profile

Torque-focused

Headroom

High

Mercedes-Benz GT 4.0 - 476hp ECU Remapping

Considering an ECU remap for your Mercedes-Benz GT 4.0 - 476hp? A Stage 1 remap can take this 2017 - 2021 petrol engine from 476 BHP to 575 BHP and from 630 Nm to 820 Nm of torque (naturally aspirated). This engine scores 5.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Mercedes-Benz GT can achieve.

How this engine compares

1stof 9 Mercedes-Benz GT engines by power gain
98%of the 9,842 engines we hold gain data for see a smaller power increase
95%of engines with torque data see a smaller torque increase

Comparisons are calculated from our own recorded Stage 1 figures.

Assessment

The Mercedes-Benz GT 4.0 - 476hp is a 4.0L naturally aspirated petrol engine producing 476 BHP and 630 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 575 BHP and 820 Nm — a gain of around 99 BHP (21%) and 190 Nm (30%).

This engine has moderate 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 high, based on the percentage gain available from the factory output.

Considerations: Naturally aspirated engine: gains are usually limited; results vary widely.. Unusually high gain for NA engine: treat as an estimate and verify against the exact engine variant.. High tuned torque: check transmission torque capacity and service history.. Large torque increase: drivetrain condition (clutch/gearbox) becomes more important at this level.

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.

Considerations

!Naturally aspirated engine: gains are usually limited; results vary widely.

!Unusually high gain for NA engine: treat as an estimate and verify against the exact engine variant.

!High tuned torque: check transmission torque capacity and service history.

!Large torque increase: drivetrain condition (clutch/gearbox) becomes more important at this level.

Other GT 2017 - 2021 Engines

Engine	BHP	Gain	Torque	Gain	Score
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)
C 4.0 - 557hp	557 → 575	+18	670 → 820	+150	Moderate (4.5/10)
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)

Technical Specifications

Fuel Type: Petrol
Aspiration: Naturally Aspirated
Displacement: 4L
Capacity: 3982 CC
Type: Car
Engine Family: Mercedes-benz 4.0L NA Petrol

ECU & Transmission

Likely ECU Low confidence: Petrol ECU (varies by market/year)
Gearbox Low confidence: Transmission varies by trim and market; check manual/automatic type and torque rating. At this torque level, transmission and driveline servicing history becomes especially important.

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Confirm Your Vehicle

MakeMercedes-Benz

ModelGT

Generation2017 - 2021

Engine4.0 - 476hp

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.