Subaru Impreza 2003 - 2005 2.0T WRX STi 265hp

Real standard and upgraded performance figures for the 2.0T WRX STi 265hp engine in the Subaru Impreza 2003 - 2005.

These are real standard and Stage 1 (and where available, Stage 2) figures for the Subaru Impreza 2003 - 2005 2.0T WRX STi 265hp — not a generic estimate for the model range.

Horsepower (HP)Torque (Nm)
Standard265340
Stage 1295400
Stage 2310430
Make
Subaru
Model
Impreza
Generation
2003 - 2005
Engine
2.0T WRX STi 265hp
Fuel type
petrol

Frequently asked questions

Is Stage 1 tuning safe for the Subaru Impreza 2003 - 2005 2.0T WRX STi 265hp?

Yes — Stage 1 for this engine is a software-only remap calibrated to stay within its stock mechanical limits (turbo, clutch, fueling), so no hardware changes are required.

How much more power does the 2.0T WRX STi 265hp make after tuning?

Standard output is 265 HP / 340 Nm; Stage 1 on this engine typically reaches 295 HP / 400 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a Subaru Impreza 2003 - 2005 2.0T WRX STi 265hp remap take?

Once your original file is uploaded through the member panel, most requests for this engine are completed within a few hours.

Can the 2.0T WRX STi 265hp be reverted to its original file?

Yes — we keep the original file on record for the request, so the ECU can be put back to stock at any time.