Opel ASTRA GTC ECU remapping
5 files available
About remapping
The Opel Astra GTC accounts for 5 files in our catalogue, dominated by the 1.6T turbocharged petrol with the 1.4T and 1.4 Turbo ecoFLEX also present. It is the three-door coupé version of the Astra.
Stage 1 accounts for all 5 files — a completely clean profile with no maintenance work at all. The ECUs are E39, E83 and a Denso reference.
Model highlights
- ›5 Stage 1 files: a completely clean performance profile.
- ›Dominated by the 1.6T turbocharged petrol.
- ›The three-door coupé version of the Astra.
- ›ECUs limited to E39, E83 and a Denso reference.
Engines and gains
| Engine | Fuel | Stock | Stage 1 | Stage 2 |
|---|---|---|---|---|
| 2.0 OPC | Petrol | 280 hp | 320 hp +40 | — |
| 2.0 Turbo | Petrol | 200 hp | 240 hp +40 | — |
| 1.6T | Petrol | 200 hp | 220 hp +20 | — |
| 1.6 SIDI Turbo | Petrol | 170 hp | 198 hp +28 | — |
| 1.6 CDTi | Diesel | 160 hp | 188 hp +28 | — |
| 1.8 16V | Petrol | 140 hp | 155 hp +15 | — |
| 1.4T | Petrol | 125 hp | 178 hp +53 | — |
| 1.9 CDTI 16V | Diesel | 120 hp | 148 hp +28 | — |
| 1.4 Turbo | Petrol | 120 hp | 150 hp +30 | — |
| 1.6 16v | Petrol | 116 hp | 128 hp +12 | — |
| 1.4 ecoFLEX | Petrol | 87 hp | 100 hp +13 | — |
| 1.7 CDTI | Diesel | 80 hp | 101 hp +21 | — |
| 1.7 DI 16V | Diesel | 68 hp | 85 hp +17 | — |
Indicative figures from the technical catalogue; confirmed when you request the file.
Power curve
1.4T
ECUs
ECU manufacturers
Available services
Remapping services
Stage 1
Optimising the original map with no hardware changes: more power and torque, full reliability.
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 the 1.6T take?
It is a turbocharged petrol with genuine headroom and responds well to a Stage 1 map on standard hardware.
How does this differ from the main Astra entries?
This covers the GTC coupé version specifically. Our history records the model under several designations, so check the others too.
Is the work reversible?
Yes. We always keep the original ECU file, so the car can be returned to its factory configuration.