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SS Tuning

WRXLink (04) - WRX104X

WRXLink (04) - WRX104X
$2,325.00 USD
$2,325.00 USD
Sale Sold out

SKU:224-4000
Subaru
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WRXLink (04) - WRX104X
$2,325.00 USD
$2,325.00 USD

Easy to install. Affordable. Reliable.

The Link G4X PlugIn ECU transforms your WRX into a precision-tuned performance machine. Enjoy the latest in engine management technology, fitted directly into your OEM enclosure with no loom modifications required.


Choose the Right Model – Pin Check Required!

The fastest and most reliable way to confirm you need the WRX104X is to check pins A1–A3 on the OEM connector:

  • Pins A1–A3 have wires → You need the WRX104X (this listing, 224-4000)
  • Pins A1–A3 are empty → You need the WRX107X.

WRX104X mostly covers 2004–2006; some late-2006 cars require the WRX107X, so this check is essential.


Vehicle Compatibility

  • Designed for WRX V10 EJ25 (2.5L) 2004–2007
  • Manual transmission only
  • Suits GD/GG chassis with electronic throttle
  • Not suitable for GR/GH/GE/GV hatchback or 3rd generation WRX

Model breakdown:
WRX104X → Mostly covers 2004–2006  
WRX107X → Mostly covers 2007 and some late 2006

 


Why Choose Link G4X?

  • Factory fit, motorsport power – installs in the OEM case with world-class tuning flexibility.
  • Plug & play – no wiring loom alterations for supported models.
  • Confidence & reliability – proven hardware and software, trusted by tuners worldwide.
  • Serious features – advanced boost control, antilag, launch, knock control & more.

Need Help With Installment?

Fill out the form below and we'll get back to you as soon as possible or give us a call.

Frequently ask questions

1. What Performance Products Do You Offer?

We offer a range of performance products, including engine management, electronics, fuel system components, sensors, accessories, and supporting hardware.

2. How Long Does It Take For My Order To Ship?

Most in-stock orders are processed as quickly as possible. Processing times may vary depending on product availability and order volume.

3. What If A Product Is Out Of Stock Or Backordered?

Availability can vary between products. If an item is unavailable or backordered, we'll provide updated information regarding your order when available.

4. How Do I Know If A Part Will Fit My Vehicle?

Always review the product information before ordering. If you're unsure about compatibility, contact us with your vehicle and setup information before purchasing.

5. Do You Ship Performance Parts Nationwide?

Shipping options are available for most products and destinations. Available methods and costs will be shown or provided during the ordering process.

What our Customers Say ?

  • I have ordered multiple times and always received exactly what was described. Every product has been genuine, fully functional, and consistently reliable.

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  • Shipping was smooth, tracking was accurate, and the order arrived even earlier than expected, making the whole delivery experience easy and reliable overall.

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  • I was struggling to get my ATOMX properly tuned and reached out to Link support. They walked me through every step over email and even gave me extra tips for my setup.

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  • I spent days searching for the right boost control module for my turbo setup. Link had exactly what I needed and included detailed specs that made everything.

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  • Installed my EVO9X last week and the difference is insane. Smooth idle, better throttle response, and the tuning options are next level. Worth every penny,

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