Chiptuning Opel Corsa C (until 2006)
9 engines · +7 to +30 hp
Opel Corsa C: 9 engines — 6 petrol and 3 diesel. The gain is +7 to +30 hp, with up to +72 Nm more torque. GAN GTL from 219 EUR, GAN GT from 329 EUR. GAN GA+ from 189 EUR.
All Opel Corsa C engines: exact gains
Standard output, output with GAN, the gain and the price for each box. Diesel and petrol engines are listed separately.
| Engine | STOCK → with GAN | Gain | Tuning boxes and prices | |
|---|---|---|---|---|
| Diesel · 3 engines | ||||
| 1.7 CDTI (sensor1)101 hp / 240 Nm | +30 hp+72 Nm |
GTL — 219 EUR · 127 hp GT — 329 EUR · 131 hp |
Select → | |
| 1.7 CDTI (sensor2)101 hp / 240 Nm | +30 hp+72 Nm |
GTL — 219 EUR · 127 hp GT — 329 EUR · 131 hp |
Select → | |
| 1.3 CDTI69 hp / 170 Nm | +21 hp+51 Nm |
GTL — 219 EUR · 87 hp GT — 329 EUR · 90 hp |
Select → | |
| Petrol · 6 engines | ||||
| 1.8i125 hp / 170 Nm | +15 hp+20 Nm |
GA — 189 EUR · 140 hp GA+ — 189 EUR · 140 hp |
Select → | |
| 1.4i90 hp / 125 Nm | +11 hp+15 Nm |
GA — 189 EUR · 101 hp GA+ — 189 EUR · 101 hp |
Select → | |
| 1.2i twinport80 hp / 110 Nm | +10 hp+13 Nm |
GA — 189 EUR · 90 hp GA+ — 189 EUR · 90 hp |
Select → | |
| 1.2i75 hp / 110 Nm | +9 hp+13 Nm |
GA — 189 EUR · 84 hp GA+ — 189 EUR · 84 hp |
Select → | |
| 1.4 Ecotec74 hp / 130 Nm | +9 hp+16 Nm |
GA — 189 EUR · 83 hp GA+ — 189 EUR · 83 hp |
Select → | |
| 1.0i58 hp / 85 Nm | +7 hp+10 Nm |
GA — 189 EUR · 65 hp GA+ — 189 EUR · 65 hp |
Select → | |
Each engine has its own tuning box: GAN GT / GTL or GAN GA / GA+. Prices are per box and include the current discount.
Not sure which engine you have?
Find your engine by the power output in your registration document: each version has its own module calibration.
Opel Corsa C remap: what changes
The GAN box plugs in between the sensors and the engine control unit (ECU) and adjusts their signals, while a flash remap rewrites the ECU itself. Your manufacturer’s warranty is preserved: the ECU software is never changed, and the box can be removed at any time.
- Bluetoothchange modes from your phone
- 18 mapsfine-tuning for your engine

- 15 minutesfitted to the factory connectors
- IP67water and dust protection
- +30 hpbest in this generation
1.7 CDTI (sensor1) 101 hp → 131 hp. The other engines gain at least +7 hp; check the table for each one.
- +72 Nmfor diesels
Diesels gain mostly torque: +51 to +72 Nm, which helps with overtaking and towing.
- up to +12%with the GAN GA+ on naturally aspirated engines
For 6 naturally aspirated engines: GAN GA / GAN GA+ tuning boxes; check the table for each engine’s figure.
- 50 daystest drive
Feel the difference or get your money back, excluding delivery costs.
Opel Corsa C remap: common questions
Which tuning box do I need for the Opel Corsa C?
Turbocharged engines take the GAN GT or GAN GTL, naturally aspirated ones the GAN GA or GAN GA+. Find your engine in the table above – each row shows the box and its price.
Is a tuning module the same as a Stage 1 remap?
Not quite. Stage 1 usually means an ECU remap without replacing any parts. The tuning module also works without replacing parts, but it does not change the ECU software: it adjusts the sensor signals, comes off in about a minute, and the OFF button in the app restores the factory settings.