Subaru Legacy ECU remapping
58 files available
About remapping
The Subaru Legacy accounts for 58 files in our catalogue, with the 2.0 D boxer as the principal engine across its designations, including the DOHC variant. The naturally aspirated 2.0i and the 2.5 GT turbocharged petrol, heir to the marque's sporting tradition, also appear.
Stage 1 accounts for 38 files and EGR off 23, a high proportion repeated across the whole Subaru diesel range. The ECUs are the marque's own: Denso and Hitachi with SH7058 and SH7059 processors, very different from the Bosch units common elsewhere in the European market.
Model highlights
- ›38 Stage 1 files on the 2.0 D boxer and the petrol versions.
- ›23 EGR off and 11 DPF off files for the diesel versions.
- ›Coverage of the 2.5 GT turbocharged petrol, the most performance-oriented version.
- ›Denso and Hitachi ECUs with SH7058 and SH7059 processors.
Fuel split
Engines and gains
| Engine | Fuel | Stock | Stage 1 | Stage 2 |
|---|---|---|---|---|
| 2.5i | Petrol | 167 hp | 187 hp +20 | — |
| 2.0 | Petrol | 125 hp | 138 hp +13 | — |
Indicative figures from the technical catalogue; confirmed when you request the file.
Power curve
2.0
ECUs
ECU manufacturers
Available services
Remapping services
Stage 1
Optimising the original map with no hardware changes: more power and torque, full reliability.
EGR off
EGR valve management to reduce soot issues and improve response.
DPF off
Particulate filter solution: no more regenerations or blockage warnings.
Stage 2
Remap for vehicles with mechanical upgrades (intake, exhaust, intercooler…).
Why remap with Repromatronic
- ✓More power and torque with engine-safe tuning
- ✓Sharper throttle response and nicer driving
- ✓Potential fuel savings in normal driving
- ✓Files built from the original and 100% reversible
- ✓Made by technicians with thousands of projects behind them
Are you a driver?
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Log in as a professionalFrequently asked questions
What is particular about the Legacy's boxer diesel?
It is an uncommon architecture with Denso or Hitachi management specific to Subaru. It requires specific files: experience with other in-line four-cylinder diesels does not transfer.
Do you work on the 2.5 GT turbo?
Yes, it is present in the catalogue. Being a turbocharged petrol, it offers a wider margin for improvement than the naturally aspirated versions.
Why so many EGR files?
It is a known point on these engines. Even so, disabling the system is not permitted on vehicles used on public roads; ask us to assess your specific case.