Porsche 911 GT3 RS 4.0 ECU remapping
5 files available
About remapping
This entry covers the Porsche 911 GT3 RS 4.0, with 5 files in our catalogue, entirely the 4.0 naturally aspirated flat-six. It is one of the most sought-after GT3 variants, built in very limited numbers.
The profile is evenly split: 2 Stage 1 and 2 Stage 2. The ECUs are MED17.1, MED17.1.1 and MED17.1.11. Being naturally aspirated, the gains here are modest by nature.
Model highlights
- ›2 Stage 1 files and 2 Stage 2.
- ›Entirely the 4.0 naturally aspirated flat-six.
- ›One of the most sought-after GT3 variants.
- ›ECUs limited to MED17.1, MED17.1.1 and MED17.1.11.
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…).
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
Are you a driver?
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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.
Is it safe on a car like this?
We work conservatively on any engine of this kind, keeping delivery well within what the mechanicals handle. The original file is always kept.
How does it differ from the 991 GT3 RS?
They are different generations of the same concept. Each has its own entry in our catalogue.