Chip Tuning Subaru Impreza I (2000)
8 engines · +11 to +20 hp
Subaru Impreza I: 8 engines — 8 petrol. Gains range from +11 to +20 hp, with up to +27 Nm of torque. GAN GA+ from 189 EUR.
All Subaru Impreza I engines: exact gains
STOCK output, output with GAN, gain and price for each module.
| Engine | STOCK → with GAN | Gain | Tuning modules and prices | |
|---|---|---|---|---|
| Petrol · 8 engines | ||||
| 2.5i167 hp / 225 Nm | +20 hp+27 Nm |
GA — 189 EUR · 187 hp GA+ — 189 EUR · 187 hp |
Select → | |
| 2.2i135 hp / 190 Nm | +16 hp+23 Nm |
GA — 189 EUR · 151 hp GA+ — 189 EUR · 151 hp |
Select → | |
| 2.0i125 hp / 184 Nm | +15 hp+22 Nm |
GA — 189 EUR · 140 hp GA+ — 189 EUR · 140 hp |
Select → | |
| 2.0i115 hp / 170 Nm | +14 hp+20 Nm |
GA — 189 EUR · 129 hp GA+ — 189 EUR · 129 hp |
Select → | |
| 1.5i97 hp / 129 Nm | +12 hp+15 Nm |
GA — 189 EUR · 109 hp GA+ — 189 EUR · 109 hp |
Select → | |
| 1.8i103 hp / 147 Nm | +12 hp+18 Nm |
GA — 189 EUR · 115 hp GA+ — 189 EUR · 115 hp |
Select → | |
| 1.6i90 hp / 128 Nm | +11 hp+15 Nm |
GA — 189 EUR · 101 hp GA+ — 189 EUR · 101 hp |
Select → | |
| 1.6i95 hp / 143 Nm | +11 hp+17 Nm |
GA — 189 EUR · 106 hp GA+ — 189 EUR · 106 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:
Subaru Impreza I tuning: what changes
More power and torque without an ECU remap or replacing any parts. The tuning module only adjusts the engine sensor 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
- +20 hpbest in this generation
2.5i 167 hp → 187 hp. The other engines gain from +11 hp; see the table for each one.
- up to +30%more power
GAN GT: up to 30%, GAN GTL: up to 25%, GAN GA+: up to 12%.
- GAN APPpower control via smartphone
SPORT, DYNAMIC, ECO and STOCK modes in the GAN app.
- 50 daystest drive
Enhanced performance or your money back, excluding delivery costs.
Subaru Impreza I chip tuning: questions
Which tuning module do I need for the Subaru Impreza I?
All engines in this generation are naturally aspirated, so you need 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.