Chip Tuning Opel Astra G (until 2009)
6 engines · +9 to +24 hp
Opel Astra G: 6 engines — 4 petrol and 2 diesel. Gains range from +9 to +24 hp, with up to +51 Nm of torque. GAN GTL from 219 EUR, GAN GT from 329 EUR. GAN GA+ from 189 EUR.
All Opel Astra G engines: exact gains
STOCK output, output with GAN, gain and price for each module. Diesel and petrol engines are listed separately.
| Engine | STOCK → with GAN | Gain | Tuning modules and prices | |
|---|---|---|---|---|
| Diesel · 2 engines | ||||
| 1.7 CDTI (sensor1)80 hp / 170 Nm | +24 hp+51 Nm |
GTL — 219 EUR · 100 hp GT — 329 EUR · 104 hp |
Select → | |
| 1.7 CDTI (sensor2)80 hp / 170 Nm | +24 hp+51 Nm |
GTL — 219 EUR · 100 hp GT — 329 EUR · 104 hp |
Select → | |
| Petrol · 4 engines | ||||
| 2.2i147 hp / 203 Nm | +18 hp+24 Nm |
GA — 189 EUR · 165 hp GA+ — 189 EUR · 165 hp |
Select → | |
| 1.6i101 hp / 150 Nm | +12 hp+18 Nm |
GA — 189 EUR · 113 hp GA+ — 189 EUR · 113 hp |
Select → | |
| 1.6i84 hp / 138 Nm | +10 hp+17 Nm |
GA — 189 EUR · 94 hp GA+ — 189 EUR · 94 hp |
Select → | |
| 1.6i75 hp / 128 Nm | +9 hp+15 Nm |
GA — 189 EUR · 84 hp GA+ — 189 EUR · 84 hp |
Select → | |
Each engine has its own tuning module: GAN GT / GTL or GAN GA / GA+. Prices are per tuning module and include the current discount.
Not sure which engine you have?
The badge alone is not enough: in this generation, the same engine designation came in different power outputs, each with its own calibration. Check the power output in your registration document and find the matching row.
Same badge, different factory power outputs in this generation:
Opel Astra G tuning: what changes
The tuning module sits between the sensors and the engine control unit (ECU) and adjusts their signals. Your manufacturer’s warranty is preserved: the ECU software is never changed, and the module can be removed at any time.
- Bluetoothsmartphone mode control
- 18 mappingsfine tuning for your engine
- 15 minutesfitted to the factory connectors
- IP67water and dust protection
- +24 hpbest in this generation
1.7 CDTI (sensor1) 80 hp → 104 hp. The other engines gain from +9 hp; see the table for each one.
- +51 Nmfor diesels
Diesels gain mainly torque: +51 to +51 Nm.
- up to +12%with the GAN GA+ on naturally aspirated engines
For 4 naturally aspirated engines: GAN GA / GAN GA+ tuning modules; see the table for each engine’s figure.
- 50 daystest drive
Enhanced performance or your money back, excluding delivery costs.
What Opel Astra owners say about GAN
In general, I liked everything!! At least according to my personal feelings this device corresponds to the declared characteristics Good device, and you do not need to buy another device for another car.
Opel Astra G chip tuning: questions
Which tuning module do I need for the Opel Astra G?
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 module and the price.
Is a tuning module the same as a Stage 1 tune?
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.