Mercedes-Benz GTC AMG 2017> 4.0 V8 Bi-Turbo 549bhp Stage 1 Eco remap figures
The Stage 1 Eco map for the Mercedes-Benz GTC AMG 4.0 V8 Bi-Turbo 549bhp (2017>): 636bhp and 833Nm expected from a standard 549bhp and 681Nm, up to +87bhp and +152Nm. It keeps most of the Stage 1 gain (Stage 1 is 665bhp and 846Nm) and is tuned with economy in mind: the choice if you want the performance and care what each tank costs.
Choose your map
Stage 1 Eco remap figures
Stage 1 Eco is performance with economy in mind. It keeps most of the Stage 1 gain, so the car still pulls well, but the map is shaped for efficient, relaxed driving rather than flat-out output. It is above the standard figures. We don't quote mpg, because economy depends on the car and how it is driven.
| Stock | Vanguard expected | Expected gain, up to | |
|---|---|---|---|
| Power | 549 bhp | 636 bhp | +87 bhp |
| Torque | 681 Nm | 833 Nm | +152 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 549 bhp | 681 Nm | |
| Stage 1Maximum software-only performance | 665 bhp | 846 Nm | +116 bhp +165 Nm |
| Stage 1 EcoPerformance with economy in mind | 636 bhp | 833 Nm | +87 bhp +152 Nm |
| Eco mapEconomy first | 627 bhp | 825 Nm | +78 bhp +144 Nm |
Who is the Stage 1 Eco map for?
- Drivers who want a quicker, more responsive car, tuned with economy in mind.
- Daily drivers who want strong mid-range pull without giving up efficiency.
- Anyone who would otherwise take full Stage 1 but cares what each tank costs.
How Stage 1 Eco compares with Stage 1
Full Stage 1 on this Mercedes-Benz GTC AMG is expected to give 665bhp and 846Nm (+116bhp, +165Nm). The Stage 1 Eco keeps about 75% of that power gain and 92% of the torque gain, so you get 636bhp and 833Nm: 29bhp less and 13Nm less than Stage 1, with the map shaped for efficient, relaxed driving, so it suits you if you want the pull and care about running costs. Both sit above the standard 549bhp and 681Nm.
What this means for your GTC AMG
Turbocharged petrol engines respond well to calibration changes: boost and timing are the main levers, and the result is a flatter, stronger torque curve as well as a higher peak.
The ECU recorded for this variant is a Bosch MED17.7.5. Newer ECUs often protect their software, so we read the exact unit and version on the car before confirming the figures on this page.
We remap at our Belgrave Gate workshop in Leicester, or at your home or work within 30 miles, and every job starts with a diagnostic check.
Please note: these are expected figures, not guarantees. Real results vary with the condition of the vehicle, the ECU software version, fuel quality and the hardware fitted. Some options - including Stage 2 and anything that needs extra hardware - are for off-road or competition use only. We check every vehicle first and confirm what is achievable before any work starts.
Figures reviewed 22 October 2026.
Stage 1 Eco questions
How much power does the Stage 1 Eco map give the Mercedes-Benz GTC AMG 4.0 V8 Bi-Turbo 549bhp?
We expect 636bhp and 833Nm against 549bhp and 681Nm as standard: up to +87bhp and +152Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.
How does Stage 1 Eco differ from Stage 1 on this engine?
Full Stage 1 is expected to give 665bhp and 846Nm. Stage 1 Eco gives 29bhp less and 13Nm less, in exchange for a map shaped with economy in mind. It still sits above the standard figures.
Is Stage 1 Eco or the Eco map better for me?
Choose Stage 1 Eco if you want the performance (636bhp and 833Nm) and still care about running costs. Choose the Eco map (627bhp and 825Nm) if economy matters more than pace.
Will the Stage 1 Eco map save fuel?
It is tuned with economy in mind while keeping most of the Stage 1 performance. We do not quote mpg figures, because economy depends on the car, its condition and how it is driven.
Do I need to tell my insurer about a remap?
Yes. A remap is a modification, so you should declare it to your insurer.
More Mercedes-Benz GTC AMG figures
Other petrol variants
All petrol GTC AMG variants · GTC AMG 2015> overview · All Mercedes-Benz figures