Subaru Legacy 2.5T GT 265hp

Stage 1 chip tuning

Petrol turbo · 2008 - 2014 · Denso SH7055 · EJ255

Stage 1 Results

Stock (hp)
265
Stage 1 (hp)
278
Gain (hp)
+13 (5%)
Torque
350 → 370 Nm +20

* Values are approximate. Contact us for a precise calculation.

Technical Information

Fuel typePetrol turbo
Tuning levelStage 1
MethodOBD2
Engine codeEJ255
ECUDenso SH7055, Denso SH7058 GW
Generation2008 - 2014

About the remap

Stage 1 chip tuning for the Subaru Legacy 2.5T GT 265hp increases power from 265 to 278 hp (+13 hp, +5%) and torque from 350 to 370 Nm. Turbocharged petrol engines respond exceptionally well to ECU optimization – adjusting ignition timing, boost pressure, and fueling maps unlocks the hidden potential built in by the manufacturer.

The remap is performed on the Denso SH7055 ECU (engine code EJ255) via the OBD2 diagnostic port – no ECU removal required. Results are verified with a dynamometer measurement.

Every vehicle undergoes full diagnostics before and after the remap. We keep a backup of the original ECU calibration and guarantee the option to revert to stock settings at any time. JVK PRO is a professional chip tuning service in Riga with 16 years of experience.

FAQ

How much does Stage 1 chip tuning cost in Riga?+

Stage 1 chip tuning at JVK PRO in Riga costs from €200 including VAT; with dyno tuning and measurements – from €350. We confirm the exact price for your engine before starting.

Is Stage 1 safe for the engine?+

Yes. Stage 1 is an optimization within factory safety margins. The remap is done via the OBD2 diagnostic port without opening the ECU. Results are verified on our dynamometer.

How long does it take?+

Usually 2 to 4 hours, including diagnostics, remapping, and a dyno verification run.

Can the original software be restored?+

Yes, we keep a backup of your original ECU file. Reverting to stock is possible at any time.

Book Stage 1

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Your vehicle
Subaru Legacy 2.5T GT 265hp
265 hp→278 hp+13 (5%)

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