WRXLink V11 - USDM WRX11X (11-14 & 15-21 STI USDM)
The Link G4X PlugIn ECU (243-4000) provides advanced engine management technology for 2011-2014 and 2015-2021 North American (USDM) Subaru WRX STI models. This unit integrates seamlessly into the factory OEM enclosure, requiring no modifications to the original wiring harness. It supports essential factory features, including the DCCD system, SiDrive, cruise control, ABS, and stability control. The ECU features 6D fuel and ignition mapping, 5D boost control, and precision closed-loop cam control for optimized engine performance. Integrated 512 MB data logging and USB tuning capabilities allow for comprehensive monitoring and calibration. Expansion connectors provide additional inputs and outputs for custom sensor integration. An air temperature sensor is highly recommended for accurate engine management. Please verify connector compatibility before purchase. For optimal performance, pair this ECU with a [Migtuned Custom Etune](https://migtuned.com/products/subaru-custom-etune) specifically mapped for your vehicle's year and model.
Click here to download the full G4X Plug-In Specifications PDF.
| Compatibility | 2011-2014 WRX STI (GR/GV), 2015-2021 WRX STI (VA) |
| Engine Type | EJ Series (FA20 not supported) |
| Transmission | Manual Only |
| Installation | Plug-in (fits factory enclosure, no wiring changes) |
| Supported Factory Features | DCCD, SiDrive, MFD Display, Cruise Control, ABS, Hill Start Assist |
| Data Logging | 512 MB internal memory |
| Connectivity | 4-pin Powered CAN Port (Requires CANJST4 cable) |
| Tuning Interface | USB |
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