WRXLink (04) - WRX104X

Purpose-built for the 2004-06 WRX V10 with EJ25, the WRX104X is designed to fit directly into the factory ECU location using the factory mounts, original wiring loom and connectors. No rewiring, no adapter looms, no compromises. It retains all factory functionality, delivers seamless OEM integration and includes a startup map to get your vehicle running quickly. The result is a clean, simple, reliable installation that maintains a stock appearance.

Link G4X Plug-in ECUs share the same processor, firmware, software and standard G4X feature set found throughout the G4X range. Features include dual CAN Bus, Flex Fuel, Flexible Engine Protection Limiters, CAN Keypad Control, Open and Closed Loop Boost Control, Dual Closed Loop Lambda, VVT Control, a built-in Trigger Oscilloscope, compatibility with aftermarket displays, Direct Automatic Transmission Control and 512MB of onboard data logging.

Drawing from Link's championship-winning G4X platform, the WRX104X also supports advanced tuning and motorsport features including Nitrous Control, Launch Control, Anti-lag, Cruise Control, Traction Control, Race Timer and Power Management, Gear Shift Control and Paddle Shift Control.

A Link Plug-in ECU is the ideal solution when available for your vehicle and the wiring remains in good condition, providing modern engine management without the complexity of a wire-in installation.

Models Supported

The WRX104X is designed to suit the following applications:

Subaru WRX Version 10, GD/GG with EJ25 engine, from 2004-2006.

The V10 WRX104X covers 2004–2006 models. For 2007 and some late 2006 models, use the WRX107X plug-in ECU (225-4000).

To confirm which ECU you need, check pins A1–A3 on the OEM connector.

If pins A1–A3 have wires then you need the WRX104X (224-4000). If pins A1–A3 are empty then you need the WRX107X (225-4000).

Important

Please check your connector matches the header in the listed photo before purchasing.

This ECU works for manual transmissions only.

Most factory features are supported.

This ECU has built-in E-Throttle (Drive-by-Wire).

Plug-in ECUs have all the standard G4X features along with advanced tuning and motorsport features including:

ECU Features

• Dual CAN Bus
• E-throttle Control
• Flex Fuel
• Trigger Oscilloscope
• 3 Axis Accelerometer
• Selectable Temp Input Pullups
• Flexible engine protection limiters
• CAN Keypad Control
• VVT Control
• Open Loop Boost Control
• Closed Loop Boost Control
• Dual Closed Loop Lambda
• Direct Automatic Transmission Control
• Compatible with all leading aftermarket dashes via CAN or serial stream
• 512 Megabytes of internal data logging

Motorsport Features

• Nitrous Control
• Launch Control
• Anti-lag
• Cruise Control
• Traction Control
• Race Timer and Power Management
• Gear Shift Control
• Paddle Shift Control

Specifications

Plug-in ECUs combine all the premium G4X specifications with genuine plug-and-play convenience, including:

Inputs and Outputs

• For the full list of Inputs and Outputs, please see the WRX104X Installation Manual

Communications

• 2 CAN Bus Channels
• LTW 6-Pin USB Tuning Connection

Product Dimensions

• 190mm(L)x160mm(W)x30mm(H)
• 7.48in(L)x6.30in(W)x1.18in(H)

Product Weight

• 260 grams (9.17 ounces)

Electrical

• Operating Voltage Range: 6.5-24V
• Maximum Input Voltage: 36V
• Maximum Continuous Current Draw: 8.5A

What's in the Box

• G4X Subaru WRX104X Plug-in ECU
• Anti-static Strap
• USB Tuning Cable - ECU to USB
• Link stickers
• Plug-in Manual Card
• Product Registration Card