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A new product by Bin is available: Subaru Impreza WRX STI 2.5L Turbo Stage 1 + Decat ECU Tuning File – Denso 4D42594006 A8DK100Z 4D425 - Stage 1 + Decat remap for Subaru Impreza WRX STI 2.5L Turbo – enhanced boost and free-flow power on Denso 4D42594006 ECU
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Subaru Impreza WRX STI 2.5L Turbo Stage 1 + Decat ECU Tuning File – Denso 4D42594006 A8DK100Z 4D425
Description
| Parameter | Value |
|---|---|
| Producer: | Subaru |
| Series: | Impreza WRX STI |
| Model: | 2.5L Turbo |
| Type (Engine): | Turbo-Petrol |
| Displacement: | 2.5 |
| Output: | 280.0PS / 205.9KW |
| Producer (ECU): | Denso |
| Build (ECU): | 4D42594006 |
| Software: | A8DK100Z |
| Checksum: | All CS ok, Plugin OLS803 v4.35, Denso32 |
| CPU: | Hitachi Hx |
| Eprom 8-Bit sum: | 1EAB |
| Nested Versions: | 2 modified versions included (Stage 1 + Decat, Stage 1) + Original for reference |
| Project Type: | Complete binary file |
| Read Hardware: | Alientech Kess V2 |
| Details: | Stage 1 + Decat |
| Project Size: | 1 048 576 bytes |
Extended Product Information
- Stage 1 + Decat tuning for Subaru WRX STI 2.5L Turbo (Denso ECU 4D42594006)
- Catalytic converter delete calibration for improved exhaust flow
- Boost maps optimised for stronger low- and mid-range torque
- Ignition and fuel maps reworked for performance and safety
- Throttle response sharpened without compromising drivability
- Includes clean Stage 1 with catalytic support and Decat variant
- Compatible with Alientech Kess V2 — OBD flashable
- Checksum corrected — no editing required
- Delivered as full binary: Original + 2 tuned versions
- Track-tested and validated on dyno
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