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Subaru Legacy
2.5T GT 265hp ( 265 PS / 195 kW ) — Tuning File

265 PS stock power · 2008 - 2014 (2008-2014) · Gasoline
Vehicle Data
BrandSubaru
ModelLegacy
Generation2008 - 2014
Year2008-2014
FuelGasoline
Displacement2,457.0 L
Engine CodeEJ255
ECUDenso SH7055, Denso SH7058 GW
Stock Power265 PS
Stock Torque350 Nm
Tuning Potential
STAGE1
272 PS +7
Power
364 Nm +14
Torque
+7 PS
Gain
STAGE2
275 PS +10
Power
370 Nm +20
Torque
+10 PS
Gain
Available Options
CAT OFF E85 Flexfuel Hard Cut limiter Pop & Bang Vmax OFF
ECU Remap — Subaru Legacy 2.5T GT 265hp ( 265 PS / 195 kW )

The Subaru Legacy 2.5T GT 265hp ( 265 PS / 195 kW ) (Gasoline, 265 PS) can be tuned with a Stage 1 ECU remap to 272 PS — a gain of +7 PS without any hardware modifications. Our tuning files target the original ECU software and optimise parameters such as injection timing, boost pressure and fuel maps to unlock the full performance potential.

All tuning files at ecufiles.io are developed and tested by experienced engineers. The original ECU file is always preserved — the remap is 100% reversible at any time.

Frequently Asked Questions
What does an ECU remap do on the Subaru Legacy 2.5T GT 265hp ( 265 PS / 195 kW )?
An ECU remap (chiptuning) modifies the engine control unit software to optimise parameters like injection timing, turbo boost pressure and fuel delivery. On the 2.5T GT 265hp ( 265 PS / 195 kW ), this typically results in more power, better throttle response and improved fuel efficiency at part load.
How much power gain is possible with Stage 1 on the 2.5T GT 265hp ( 265 PS / 195 kW )?
Stage 1 brings the 2.5T GT 265hp ( 265 PS / 195 kW ) from 265 PS to 272 PS — a gain of +7 PS. No hardware modifications are required, making it the most popular and cost-effective tuning option.
Is chiptuning reversible on the Subaru Legacy?
Yes. We always save the original ECU file before applying any remap. The tuning can be fully reversed to factory settings at any time.
How fast do I receive the tuning file?
We process orders Monday to Friday from 08:00–20:00 and Saturday from 10:00–16:00. Most tuning files for the Subaru Legacy are delivered within 1–3 hours after uploading your original file.

Order Tuning File for Subaru Legacy

Upload your original file — we deliver the right tuning file for your 2.5T GT 265hp ( 265 PS / 195 kW ). Fast, secure, credit-based. B2B access for chiptuning professionals.

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