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Subaru Impreza 2.0T WRX STi 265hp

2003 - 2005

265 Original HP
295 Modified HP
340 Original NM
400 Modified NM
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Subaru Impreza

Subaru Impreza 2003 - 2005 2.0T WRX STi 265hp

Key Specifications

Generazione 2003 - 2005
Carburante Petrol
Codice motore EJ20
ECU Denso 68HC16
Rapporto compressione 8.0:1
Alesaggio x Corsa 92.0 X 75.0 mm
Power 265 → 295 hp +30 hp
Torque 340 → 400 Nm +60 Nm
Power
295 HP
+30 HP (+11.3%)
Original 265 HP
Stage 1 295 HP
Torque
400 NM
+60 NM (+17.6%)
Original 340 NM
Stage 1 400 NM

Power Graph

Original Power 265HP
Original Torque 340Nm
Power After Remap 295HP
Torque After Remap 400Nm

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Frequently Asked Questions - Subaru Impreza

The cost of Stage 1 tuning for Subaru Impreza 2.0T WRX STi 265hp varies depending on the ECU (Denso 68HC16) and specific requirements. Contact us for a free personalized quote.

Stage 1 tuning for Subaru Impreza typically takes 1-2 hours of work. Time may vary depending on the ECU type.

Yes, our Stage 1 tunes are developed respecting the engine's safety margins. The power increase from 265 to 295 HP (+11%) is within safe parameters.

With Stage 1 tuning, Subaru Impreza goes from 265 HP to 295 HP (+30 HP) and from 340 Nm to 400 Nm (+60 Nm).

Stage 1 remapping takes it from 265 HP to 295 HP (+30 HP, +11%) and torque from 340 Nm to 400 Nm (+60 Nm). These figures refer to the standard engine, with no hardware modifications.

A remap changes the factory calibration, so on a vehicle still under manufacturer warranty it may affect coverage on powertrain components. Performance tuning keeps all emission systems working; deactivating emission devices such as DPF, EGR or AdBlue is not road-legal in the EU and UK and is intended for off-road, motorsport or export use only.

With a normal driving style consumption usually stays the same or drops slightly: the extra torque at low rpm means less throttle for the same speed. Consumption goes up only if you actually use the additional power.

Yes. The original file is read and stored before any modification, so the vehicle can be returned to the factory calibration at any time.

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Subaru
Subaru Impreza 2.0T WRX STi 265hp
+30 HP
295 HP