Subaru Impreza 2008+ 2.5T WRX STI 300hp Chip Tuning · Stage 1
Power goes from 300 bhp to 330 bhp — a gain of +30 bhp (10%). Torque rises from 407 Nm to 467 Nm.
Figures are typical ranges; exact results depend on the vehicle's hardware and dyno measurement.
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Subaru Impreza 2008+ 2.5T WRX STI 300hp
Book an appointment Find a centreReversible: Yes, the original software is kept
Subaru Impreza 2008+ 2.5T WRX STI 300hp — Stage 1 Remap
Stage 1 re-calibrates the ECU software — boost, fuelling and ignition maps — within the factory hardware's safe tolerances. No hardware changes are required.
Stage 1 Remap
Software that optimises the engine's power and torque maps within safe limits.
Stage 2 Remap
Advanced software matched to hardware upgrades such as a sport exhaust or induction kit.
Pop & Bang
Software that creates exhaust crackle on lift-off.
Speed Limiter (Vmax) Removal
Removing the factory top-speed limiter from the software.
DTC / Fault Code Removal
Switching off selected diagnostic trouble codes (DTC) in the ECU software.
Subaru Impreza — Power Calculator
| Engine | Power | |
|---|---|---|
| 2.0 D Boxer 150hp | 150 → 180 bhp | +30 bhp |
| 2.0T 268hp | 268 → 300 bhp | +32 bhp |
| 2.5T WRX 230hp | 230 → 260 bhp | +30 bhp |