ECU Shootout

Link WRX104X (Subaru WRX & STI V10, 2004-06) ECU

MidPlug-in
US$2,195
US dealer price (Subimods); official linkecu.com NZD 3,283.25Checked

The Link WRX104X (Subaru WRX & STI V10, 2004-06) is a mid-range plug-in engine control unit (ECU) from Link ECU. It has 8 injector and 8 ignition outputs, 1 drive-by-wire throttle channel and knock control. List price is US$2,195. 2 sellers list it from US$1,845 to US$2,195.

Prices checked . Specs from Link ECU's published data.

Pixel illustration of the Link WRX104X (Subaru WRX & STI V10, 2004-06)
Link WRX104X (Subaru WRX & STI V10, 2004-06) product photo
Photo: Link · linkecu.com ↗

Key specs

8INJECTORS
8IGNITION
–MAX CYL
1DBW
0λ WIDEBAND
1KNOCK
2CAN BUSES
✓LOGGING

DBW = drive-by-wire throttle channels · λ wideband = onboard wideband lambda (oxygen sensor) inputs · CAN = controller area network buses.

Features

  • ✓Drive-by-wire
  • ✕Onboard wideband
  • ✓Knock control
  • ✓Flex fuel
  • ✓Traction control
  • ✓Launch control
  • ✓Boost control
  • ✓Gearbox control
  • ✓Onboard logging
  • ?Ethernet
  • ?USB
  • ✕Built-in display

✓ published · ✕ not offered · ? not published. Some features, like traction control and launch control, mean different things by brand. See the glossary.

Details

Highlights
Fits: Subaru WRX Version 10, GD/GG with EJ25 engine, from 2004-2006., 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). This ECU works for manual transmissions only. Most factory features are supported. This ECU has built-in E-Throttle (Drive-by-Wire).
Part number
224-4000
Software
PCLink (free)
Logging
512MB onboard
Links
Product page ↗Price source ↗
Fits
Subaru Impreza WRX / STI
Tuning
Find a Link ECU tuner with a dyno
Maker
Link ECU: history, software and every model

Where to buy the WRX104X (Subaru WRX & STI V10, 2004-06)

2 sellers found

LowestUS$1,845Link ECU (official store) · New Zealand
TypicalUS$2,020median of 2 priced
HighestUS$2,19519% above lowest
In stock0 of 2as listed
NZD 3,283≈ US$1,845
USD 2,195

Prices as shown on each seller's site on , in their own currency, converted at 14 Oct 2026 rates. Shipping, import duty and tax vary. Check with the seller before you buy.

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