Chiptuning Subaru Legacy IV (2003–2009)
12 engines · +17 to +29 hp
Subaru Legacy IV: 12 engines — 12 petrol. The gain is +17 to +29 hp, with up to +36 Nm more torque. GAN GA+ from 189 EUR.
All Subaru Legacy IV engines: exact gains
Standard output, output with GAN, the gain and the price for each box.
| Engine | STOCK → with GAN | Gain | Tuning boxes and prices | |
|---|---|---|---|---|
| Petrol · 12 engines | ||||
| 3.0i245 hp / 297 Nm | +29 hp+36 Nm |
GA — 199 EUR · 274 hp GA+ — 199 EUR · 274 hp |
Select → | |
| 2.0i190 hp / 196 Nm | +23 hp+24 Nm |
GA — 189 EUR · 213 hp GA+ — 189 EUR · 213 hp |
Select → | |
| 2.0i180 hp / 196 Nm | +22 hp+24 Nm |
GA — 189 EUR · 202 hp GA+ — 189 EUR · 202 hp |
Select → | |
| 2.0T260 hp / 325 Nm | +21 hp+26 Nm |
GA — 199 EUR · 281 hp GA+ — 199 EUR · 281 hp |
Select → | |
| 2.5i173 hp / 227 Nm | +21 hp+27 Nm |
GA — 189 EUR · 194 hp GA+ — 189 EUR · 194 hp |
Select → | |
| 2.5i177 hp / 299 Nm | +21 hp+36 Nm |
GA — 189 EUR · 198 hp GA+ — 189 EUR · 198 hp |
Select → | |
| 2.0i164 hp / 190 Nm | +20 hp+23 Nm |
GA — 189 EUR · 184 hp GA+ — 189 EUR · 184 hp |
Select → | |
| 2.5i165 hp / 226 Nm | +20 hp+27 Nm |
GA — 189 EUR · 185 hp GA+ — 189 EUR · 185 hp |
Select → | |
| 2.5i167 hp / 229 Nm | +20 hp+27 Nm |
GA — 189 EUR · 187 hp GA+ — 189 EUR · 187 hp |
Select → | |
| 3.6i256 hp / 247 Nm | +20 hp+20 Nm |
GA — 199 EUR · 276 hp GA+ — 199 EUR · 276 hp |
Select → | |
| 2.0i150 hp / 196 Nm | +18 hp+24 Nm |
GA — 189 EUR · 168 hp GA+ — 189 EUR · 168 hp |
Select → | |
| 2.0i138 hp / 187 Nm | +17 hp+22 Nm |
GA — 189 EUR · 155 hp GA+ — 189 EUR · 155 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:
Subaru Legacy IV remap: what changes
More power and torque without rewriting the ECU or swapping any parts. The GAN box only adjusts the engine sensor signals. 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
- +29 hpbest in this generation
3.0i 245 hp → 274 hp. The other engines gain at least +17 hp; check 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
Feel the difference or get your money back, excluding delivery costs.
Subaru Legacy IV remap: common questions
Which tuning box do I need for the Subaru Legacy IV?
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.