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 |
Supported Factory Features:
• Factory DCCD system
• SiDrive (can be setup to adjust anything you like in ecu)
• MFD display, trip computer and gear display.
• ABS, stability control and all factory safety functionality.
• Hill start assist
• Brake pressure, all 4 wheel speeds, rear demister, handbrake, Trac mode, diff mode, steering wheel position and other CAN data able to be used for logging or other strategies.
• All other dash gauges and warning lamps working per factory. CE Lamp can be used for other functions such as shift light or knock warning.G4X PlugIn Key Features (where applicable):
Up to 6D fuel and ignition mapping
Precision closed loop cam control (four cam, independent control)
Sequential fuel delivery
Digital triggering, all OEM patterns
OEM idle hardware supported
5D boost control with three switchable tables
Motorsport features - antilag, launch, flat shift
Continuous barometric correction (on board)
CAN port
QuickTune - automated fuel tuning
Individual cylinder correction
USB tuning cable included
Stats recording into on-board memory
Gear compensations for spark, boost and fuel
Real time selectable dual fuel, ignition and boost maps
Sync and crank sensors can be a combination of Hall effect, variable reluctance or optical
Boost control referenced to gear, speed or throttle position
512 mega bytes data logging memory within data storage unit
Staged injection
Knock with "windowing"
I/O Options:
The following expansion connector inputs/outputs are provided:
Expansion Connector 1
Pin 1 Ground
Pin 2 +5v
Pin 3 An Temp 4
Pin 4 An Temp 3
Pin 5 An Volt 4
Pin 6 An Volt 5
Pin 7 An Volt 6
Pin 8 An Volt 7Expansion Connector 2
Pin 1 Ground
Pin 2 +5V
Pin 3 Knock 2
Pin 4 DI11
Pin 5 Injector 5
Pin 6 Injector 6
Pin 7 Injector 7
Pin 8 Injector 8
