Chiptuning Opel Signum
11 engines · +15 to +52 hp
Opel Signum: 11 engines — 6 petrol and 5 diesel. The gain is +15 to +52 hp, with up to +105 Nm more torque. GAN GTL from 219 EUR, GAN GT from 329 EUR. GAN GA+ from 189 EUR.
All Opel Signum 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 · 5 engines | ||||
| 3.0 CDTI184 hp / 400 Nm | +52 hp+105 Nm |
GTL — 249 EUR · 228 hp GT — 399 EUR · 236 hp |
Select → | |
| 3.0 CDTI177 hp / 370 Nm | +50 hp+95 Nm |
GTL — 249 EUR · 220 hp GT — 399 EUR · 227 hp |
Select → | |
| 1.9 CDTI150 hp / 320 Nm | +43 hp+89 Nm |
GTL — 249 EUR · 187 hp GT — 399 EUR · 193 hp |
Select → | |
| 1.9 CDTI120 hp / 280 Nm | +36 hp+81 Nm |
GTL — 219 EUR · 151 hp GT — 329 EUR · 156 hp |
Select → | |
| 1.9 CDTI100 hp / 260 Nm | +30 hp+77 Nm |
GTL — 219 EUR · 126 hp GT — 329 EUR · 130 hp |
Select → | |
| Petrol · 6 engines | ||||
| 2.8 V6 Turbo Ecotec250 hp / 350 Nm | +43 hp+60 Nm |
GTL — 249 EUR · 285 hp GT — 399 EUR · 293 hp |
Select → | |
| 2.8 V6 Turbo Ecotec230 hp / 330 Nm | +39 hp+56 Nm |
GTL — 249 EUR · 262 hp GT — 399 EUR · 269 hp |
Select → | |
| 3.2i211 hp / 300 Nm | +25 hp+36 Nm |
GA — 199 EUR · 236 hp GA+ — 199 EUR · 236 hp |
Select → | |
| 2.2i155 hp / 220 Nm | +19 hp+26 Nm |
GA — 189 EUR · 174 hp GA+ — 189 EUR · 174 hp |
Select → | |
| 1.8i140 hp / 175 Nm | +17 hp+21 Nm |
GA — 189 EUR · 157 hp GA+ — 189 EUR · 157 hp |
Select → | |
| 1.8i122 hp / 167 Nm | +15 hp+20 Nm |
GA — 189 EUR · 137 hp GA+ — 189 EUR · 137 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?
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 Signum 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
- +52 hpbest in this generation
3.0 CDTI 184 hp → 236 hp. The other engines gain at least +15 hp; check the table for each one.
- +105 Nmfor diesels
Diesels gain mostly torque: +77 to +105 Nm, which helps with overtaking and towing.
- up to +12%with the GAN GA+ on naturally aspirated engines
For 4 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 Signum remap: common questions
Which tuning box do I need for the Opel Signum?
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.