Link ECU · SKU: 224-4000
Link WRXLink ECU - Subaru Impreza WRX & STI 2004-2006
Regular price
€2,16
incl. VAT
International orders may be subject to VAT, import duties, and customs fees upon arrival in the destination country.
QT Parts is a Finnish online store.
Our warehouse is located in Nokia, Finland.
You can collect your order directly from us if needed. Simply select “Pickup” at checkout.
Pay securely with multiple payment methods, including invoice and installment plans through Klarna.
The delivery time for products in stock is 1-5 business days. We ship worldwide.
If the product is not in stock and it is a pre order product, the average delivery time is 5-21 business days. If the product has a longer delivery time than previously announced, we will be in touch. International orders may be subject to VAT, import duties, and customs fees upon arrival in the destination country.
Terms for product returns:
- You must return the ordered products within 14 days of receiving
- The products must be unused and without damages
- Commission fee for handling returns is 21,90€
- For product returns, the customer is in charge of the return costs. Only door to door service (Express)
- Shipping costs are not refunded
For international orders sales are final and non-refundable. Once an order is placed, it cannot be canceled or returned. By placing an order, you acknowledge and agree to these terms.
Return address: QT Parts, Vasarakatu 8B, 37150 Nokia, Finland.
Pre order / made-to-order products
If the product you have ordered is a pre order or made-to-order item, it is not subject to the 14-day right of withdrawal or return under consumer protection laws, as the product is manufactured or sourced specifically based on the customer’s individual order.
If you wish to cancel your order before receiving the product, we will refund 50% of the total order amount.
This condition applies to the following product categories:
- Suspension
- Engine Tuning
- Engine Parts
- Exhaust Systems
- Fueling
- Turbochargers/superchargers
- Drivetrain
- ECE-approved Downpipes
All of the above products are manufactured or sourced individually based on the customer’s order, and therefore cannot be returned after delivery, unless the product has a manufacturing or material defect.
In the event of such a defect, the standard liability for defects as provided by consumer protection legislation shall apply.
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.