Your Vehicle
Subaru Legacy 2.5T GT 265hp
Technical Specifications
Power and torque increase
Stage 1: software remap only, no mechanical changes, fully reversible.
Stage 1: file 100 € online + installation 350 € at the workshop (via the OBD port) Book now
Power HP
Torque Nm
Buy the Stage 1 file, pay the installation at the workshop
100 € VAT included: the file developed for your engine, paid online
Installation: 350 € network price, the workshop may charge less, paid at the chosen workshop (via the OBD port) · terms
Power Graph
Subaru Legacy 2.5T GT 265hp: da 265 a 275HP
Remapping Subaru Legacy
MasterTuning develops remapping for Subaru. La Subaru Legacy 2.5T GT 265hp può passare da 265 HP a 275 HP con un incremento di 10 HP.
The development of each remap is customized by MasterTuning.
- 100% customised files with lifetime warranty
- Reference values for Stage 1: the file is developed on your vehicle and checked in the workshop
- Best performance, within safety margins
- Reduced fuel consumption
ECU Remapping Details Subaru Legacy 2.5T GT 265hp
The Subaru Legacy 2.5T GT 265hp is equipped with a petrol engine that produces 265 HP and 350 Nm of torque in its factory configuration. With MasterTuning's professional ECU remapping, this Subaru can achieve 275 HP (+4%) and 370 Nm (+6%).
Our Stage 1 tuning for the Legacy 2008 - 2014 delivers an impressive gain of +10 HP and +20 Nm, optimizing the petrol engine's performance while maintaining reliability and staying within safe parameters.
The engine code EJ255 identifies this specific powerplant configuration. The Denso SH7055 / Denso SH7058 GW ECU is professionally recalibrated to unlock hidden potential while preserving engine longevity.
With 265 HP from factory, this Subaru Legacy is already a performance vehicle. Our remapping extracts even more potential, delivering exhilarating acceleration and enhanced driving dynamics for enthusiasts who demand the best.
Technical Specifications — Subaru Legacy 2.5T GT 265hp
Factory technical data for the Subaru Legacy 2.5T GT 265hp (2008 - 2014), used by MasterTuning engineers to develop a remap tailored to this specific powerplant. Figures shown are reference values for Stage 1; the file is developed on your vehicle and checked in the workshop.
| Engine code | EJ255 |
|---|---|
| ECU / Control unit | Denso SH7055 / Denso SH7058 GW |
| Fuel | Petrol |
| Compression ratio | 8.4 |
| Bore × stroke | 99.5 X 79.0 mm |
| Stock power | 265 HP · 350 Nm |
| Remapped power (Stage 1) | 275 HP (+10) · 370 Nm (+20) |
Don't want to touch the ECU?
Rapid Dimsport add-on modules connect to the engine sensors with original connectors: they fit in a few hours and come off without a trace, leaving the factory software untouched. Useful on a leased car, one still under warranty or one you plan to sell soon. Check which ones fit your Subaru Legacy.
Frequently Asked Questions - Subaru Legacy
How much power can I gain from remapping my Subaru Legacy?
With MasterTuning Stage 1, your Subaru Legacy 2.5T GT 265hp can gain +10 HP (from 265 to 275 HP) and +20 Nm of torque. This represents a 4% increase in power.
Which ECU does the Subaru Legacy 2.5T GT 265hp use?
The Subaru Legacy 2.5T GT 265hp uses the Denso SH7055 / Denso SH7058 GW engine control unit. MasterTuning recalibrates this ECU for Stage 1 and Stage 2.
What is the engine code of the Subaru Legacy 2.5T GT 265hp?
The engine code of the Subaru Legacy 2.5T GT 265hp is EJ255. You can find it in the vehicle documents or on the engine plate.
Is ECU remapping safe for the Subaru Legacy engine?
Yes, MasterTuning's remapping for the Subaru Legacy 2.5T GT 265hp is developed within safe parameters. Each file is developed on your vehicle, checked in the workshop and stays within the mechanical limits of the EJ255 engine.
Is the Subaru ECU remapping reversible?
Absolutely. The original factory calibration of your Subaru Legacy is always backed up before remapping. The process is 100% reversible at any time.
Will remapping affect my Subaru warranty?
ECU remapping may affect your manufacturer warranty. We recommend checking your specific warranty terms. Many of our customers choose to remap after the warranty period or accept this trade-off for the significant performance gains.
Other Remaps You Might Like
Other Engines Subaru Legacy 2008 - 2014
Similar Power Subaru
Book your remap or ask for a quote
Stage 1 can be bought online and is done at the workshop you choose; for Stage 2 we send you a quote.
Stage 2 is quoted on request: write to us and we will reply with price and timing.
Request Quote on WhatsAppYour data is safe. No spam, just your quote.