Designed for the WRX V1-2 EJ20. Please check your pinoutconnector 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. Check the features tab for I/O input & output expansion options. This ECU will need a modification before E-Throttle is usable. Suitable Applications for 226-4000 Automotive Computer Unit: GC8A GC8B GC8C WRX and STI from 10/1992 to 8/1996 G4X PlugIn Key Features (where applicable):Up to 6D fuel and ignition mappingPrecision closed loop cam control (four cam, independent control)Sequential fuel deliveryDigital triggering, all OEM patternsOEM idle hardware supported5D boost control with three switchable tablesMotorsport features - antilag, launch, flat shiftContinuous barometric correction (on board)CAN portQuickTune - automated fuel tuningIndividual cylinder correctionUSB tuning cable includedStats recording into on-board memoryGear compensations for spark, boost and fuelReal time selectable dual fuel, ignition and boost mapsSync and crank sensors can be a combination of Hall effect, variable reluctance or opticalBoost control referenced to gear, speed or throttle position512 mega bytes data logging memory within data storage unitStaged injectionKnock with "windowing"The following expansion connector inputs/outputs are provided: Expansion connector 1 Gnd Sensor Ground Only +5V Low Current +5V Supply DI 5 Digital Input DI 6 Digital Input Volt 5 Analog 0-5V input Volt 6 Analog 0-5V input An Temp 2 Temperature sensor input An Temp 3 Temperature sensor input Expansion connector 2 Gnd Sensor Ground Only +5V Low Current +5V Supply DI 9 Digital Input DI 10 Digital Input Volt 8 Analog 0-5V input Volt 9 Analog 0-5V input Ign 7 Ignition 7 Auxiliary Output Ign 8 Ignition 8 Auxiliary Output Download Manual Click here 🎁 BONUS — FREE Remote Setup Support ($297 Value) When you purchase from Kugan Tuning, you also receive: • Remote ECU flashing assistance• Basemap selection guidance• Startup and sensor verification• Professional tuning support This ensures your car starts, idles, and runs correctly the first time — helping you avoid costly mistakes and wasted dyno time.