Porsche 911 GT3 ECU remapping
13 files available
About remapping
This entry groups Porsche 911 GT3 units in our catalogue, with 13 files spread across the 3.6i and 3.8i naturally aspirated flat-six and a 4.0 litre reference. It is the track-focused version of the 911 across several generations.
Stage 1 makes up 6 files and Stage 2 a further 5 — an almost even split, reflecting cars that often carry hardware modifications. The ECUs are MED17.1.11, MED17.1.1, ME7.8, ME7.8.2 and MS3.1.
Model highlights
- ›6 Stage 1 files and 5 Stage 2: an almost even split.
- ›Spread across the 3.6i and 3.8i naturally aspirated flat-six.
- ›The track-focused version of the 911 across several generations.
- ›ECUs including MED17.1.11, MED17.1.1, ME7.8, ME7.8.2 and MS3.1.
Fuel split
Engines and gains
| Engine | Fuel | Stock | Stage 1 | Stage 2 |
|---|---|---|---|---|
| GT2 RS 3.8 | Petrol | 700 hp | 758 hp +58 | — |
| Turbo S 3.8 TT V6 | Petrol | 650 hp | 750 hp +100 | — |
| GT2 RS 3.6 | Petrol | 620 hp | 668 hp +48 | — |
| Carrera Turbo S Exclusive 3.8 | Petrol | 607 hp | 659 hp +52 | — |
| Carrera Turbo S 3.8 | Petrol | 580 hp | 638 hp +58 | 656 hp +76 |
| Carrera Turbo S 3.8 DFI | Petrol | 560 hp | 600 hp +40 | 618 hp +58 |
| Carrera Turbo 3.8 | Petrol | 540 hp | 640 hp +100 | 656 hp +116 |
| GT2 3.6 | Petrol | 530 hp | 572 hp +42 | — |
| Turbo S 3.8 | Petrol | 530 hp | 570 hp +40 | 590 hp +60 |
| Carrera Turbo 3.8 DFI | Petrol | 520 hp | 600 hp +80 | 618 hp +98 |
| 4.0 GT3 | Petrol | 510 hp | 530 hp +20 | — |
| GT3 RS 4.0 | Petrol | 500 hp | 520 hp +20 | — |
| Turbo 3.8 | Petrol | 500 hp | 568 hp +68 | — |
| GT3 RS 4.0 DFI | Petrol | 500 hp | 525 hp +25 | — |
| R 4.0 DFI | Petrol | 500 hp | 525 hp +25 | — |
| Turbo 3.6 | Petrol | 480 hp | 530 hp +50 | 550 hp +70 |
| GT3 3.8 DFI | Petrol | 475 hp | 500 hp +25 | — |
| Carrera GTS / Carrera 4 GTS 3.0T | Petrol | 450 hp | 518 hp +68 | 538 hp +88 |
| Carrera Turbo S 3.6 | Petrol | 450 hp | 490 hp +40 | — |
| S/4S 3.0 TT V6 | Petrol | 450 hp | 530 hp +80 | 550 hp +100 |
Indicative figures from the technical catalogue; confirmed when you request the file.
Power curve
Carrera GTS / Carrera 4 GTS 3.0T
ECUs
ECU manufacturers
Available services
Remapping services
Stage 1
Optimising the original map with no hardware changes: more power and torque, full reliability.
Stage 2
Remap for vehicles with mechanical upgrades (intake, exhaust, intercooler…).
Speed limiter removal
Removal of the factory speed limiter.
Why remap with Repromatronic
- ✓More power and torque with engine-safe tuning
- ✓Sharper throttle response and nicer driving
- ✓Potential fuel savings in normal driving
- ✓Files built from the original and 100% reversible
- ✓Made by technicians with thousands of projects behind them
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Log in as a professionalFrequently asked questions
How much does a naturally aspirated engine gain?
Considerably less than a turbocharged one — there is no boost to adjust. We are honest about this: expect refinement in delivery, not a large power figure.
How does this differ from the 991 GT3 entry?
That entry covers the 991 generation specifically; this one spans several. It is worth checking both for your unit.
What is Stage 2 for?
It is for cars that already carry hardware modifications, typically exhaust. Without them, Stage 1 is the right level.