Performance Chip Tuning Opel Signum
11 engines · +15 to +52 hp
Opel Signum: 11 engines — 6 gas and 5 diesel. Gains run from +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
STOCK output, output with GAN, gain and price for each module. Diesel and gasoline engines are listed separately.
| Engine | STOCK → with GAN | Gain | Tuners 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 → | |
| Gasoline · 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 gets its own performance chip: GAN GT / GTL or GAN GA / GA+. Prices are per performance chip and include the current discount.
Not sure which engine you have?
The badge alone isn’t enough: in this generation, the same engine came with different horsepower ratings, each with its own calibration. Check the horsepower in your owner’s manual or vehicle documents and find the matching row.
Same badge, different factory power outputs in this generation:
Opel Signum tune: what changes
The module plugs in between the sensors and the engine control unit (ECU) and adjusts their signals. It never rewrites your ECU software: your factory warranty is preserved, and the module can be removed at any time.
- Bluetoothswitch modes from your phone
- 18 mapsto fine-tune your engine
- 15 minutesplug-and-play install
- IP67water and dust protection
- +52 hpbest in this generation
3.0 CDTI 184 hp → 236 hp. The other engines gain +15 hp and up; check the table for each one.
- +105 Nmfor diesels
Diesels gain mostly torque: +77 to +105 Nm for towing and hauling.
- up to +12%with the GAN GA+ on naturally aspirated engines
For 4 naturally aspirated engines: the GAN GA / GAN GA+ tuners; check the table for each engine’s numbers.
- 50 daystest drive
Enhanced performance or your money back, excluding shipping costs.
Opel Signum tuning FAQ
Which tuner do I need for my Opel Signum?
Turbo engines take the GAN GT or GAN GTL; naturally aspirated engines take the GAN GA or GAN GA+. Find your engine in the table above – each row shows the tuner and the price.
Is a tuning module the same as a Stage 1 tune?
Not quite. Stage 1 usually means an ECU flash tune 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.