LINK G4X WRXLink - WRX6X

Genuine Plug-In convenience with modern G4X architecture, advanced tuning and motorsport features.

Purpose-built for the WRX V5 to 6, the WRX6X 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 WRX6X 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.

Suitable applications:

The WRX6X is designed to suit the following 4 grey plug applications:

• Subaru WRX Version 5, GC8F with EJ20 engine from 1998-1999.
• Subaru WRX Version 6, GC8G with EJ20 engine from 1999-2000.

Important notes:

• Please check your connector matches the header in the listed photo before purchasing.
• This ECU works for manual transmissions only.
• Air temp sensor highly recommended.
• Most factory features are supported.
• This ECU requires an Expansion Loom before E-Throttle is usable.
• PCB V1.4 onwards of this Plug-in features a new 4 pin powered CAN connector and cannot use the old CANPCB cable for CAN connection. Use the CANJST4 (Code 101-0198) cable for connecting CAN devices. This new 4 pin port and cable provides not only the CAN connection, but also a protected 12V power supply and ground for powering the CAN devices. The power supply is protected by a self-resetting fuse rated at 3A continuous.

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 WRX6X 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: 11.5A

What's in the Box:

• G4X Subaru WRX6X Plug-in ECU
• Anti-static Strap
• USB Tuning Cable - ECU to USB
• Link stickers
• Plug-in Manual Card
• Product Registration Card

Download Product Manual

Add an MTS ECU case to your order

Skip the hassle of transferring the Link board into your factory ECU housing. Our Motorsport Tuning Solutions case is made specifically for this plug-in ECU, so it drops straight into the factory location with a clean, finished look.

• 2-piece 3D printed case and lid, designed and made in-house by MTS
• Cut-outs for extra I/O wiring, CAN bus, the tuning cable and the MAP vacuum line
• Normally $139, only $100 when added with your ECU (save $39)
• Case and lid only, no mounting brackets

👉 View the MTS case for this ECU (photos and details, opens in a new tab)

To add it, select "Yes please (+$100)" above. Prefer to reuse your factory housing? Select "No thanks".

Motorsport Tuning Solutions is an authorised Link ECU dealer on the Gold Coast. Need it installed and dyno tuned on our Mainline ProHub dyno? Get in touch for a quote.