Subaru WRX · 2015 - 2017
2.5 STi 300hp Stage 1 tuning
The Subaru WRX 2.5 STi 300hp produces 300 hp and 407 Nm as standard. The YASTUNING Stage 1 remap file takes it to 330 hp and 467 Nm, a gain of +30 hp and +60 Nm. Engine code EJ25. ECU: Denso SH7058 GW, Hitachi SH72543. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.
Power
300 hp
330 hp
+30 hp
Torque
407 Nm
467 Nm
+60 Nm
Engine specifications
- Engine code
- EJ25
- Fuel
- Petrol
- Displacement
- 2457 cc
- Compression
- 8.2 : 1
- Bore × Stroke
- 99.5 X 79.0 mm
- ECU
- Denso SH7058 GW, Hitachi SH72543
- Method
- Chiptuning
Available options
Software options we can include with the Subaru WRX 2.5 STi 300hp file on request.
- DECAT
- DTC Removal
- Vmax
Supported read methods
Tools known to read and write this ECU. Send the stock file from any of them and we return the tuned file in the same format.
- Alientech KESS3
- Alientech KESSv2
- Autotuner
- Flex
- New Genius