Chip Tuning Subaru Legacy III (until 2004)
4 engines · +15 to +26 hp
Subaru Legacy III: 4 engines — 4 petrol. Gains range from +15 to +26 hp, with up to +35 Nm of torque. GAN GA+ from 189 EUR.
All Subaru Legacy III engines: exact gains
STOCK output, output with GAN, gain and price for each module.
| Engine | STOCK → with GAN | Gain | Tuning modules and prices | |
|---|---|---|---|---|
| Petrol · 4 engines | ||||
| 3.0i220 hp / 289 Nm | +26 hp+35 Nm |
GA — 199 EUR · 246 hp GA+ — 199 EUR · 246 hp |
Select → | |
| 2.0i155 hp / 196 Nm | +19 hp+24 Nm |
GA — 189 EUR · 174 hp GA+ — 189 EUR · 174 hp |
Select → | |
| 2.5i156 hp / 223 Nm | +19 hp+27 Nm |
GA — 189 EUR · 175 hp GA+ — 189 EUR · 175 hp |
Select → | |
| 2.0i125 hp / 184 Nm | +15 hp+22 Nm |
GA — 189 EUR · 140 hp GA+ — 189 EUR · 140 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 Legacy III 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
- +26 hpbest in this generation
3.0i 220 hp → 246 hp. The other engines gain from +15 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 Legacy III chip tuning: questions
Which tuning module do I need for the Subaru Legacy III?
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.