We get calls and emails all the time about people wanting to swap an EJ20 Subaru engine into their car and we love to help with this! However, it's not enough information since the term EJ20 is a very general identification for any Subaru EJ engine that has 2 liters of displacement. It's not specific to the model year, whether it came with a turbo, AVCS, etc. So when you are describing your engine to us for your build please be more specific (ex: version number or year). If you aren’t sure, then you are welcome to send us a picture and we can help identify it.
We've included a basic list of common engines with some general information to assist.
Not sure which engine you have? Watch this video to learn how to identify your engine.
JDM V1-V2ine Code - EJ20G
Years It Was Made - 1993-1996
Drive by Wire - No
AVCS - No
OBD2 - No
Communication Method - Non CANBUS
Security System - Non Immobilized
JDM V3-V4
Engine Code - EJ20K
Years It Was Made - 1997-1998
Drive by Wire - No
AVCS - No
OBD2 - No
Communication Method - Non CANBUS
Security System - Non Immobilized
JDM V5-V6Engine Code - EJ205 = WRX/Forester | EJ207 = STi
Years It Was Made - 1999-2000
Drive by Wire - No
AVCS - No
OBD2 - No
Communication Method - Non CANBUS
Security System - Non Immobilized
*This is the last year JDM Subarus were labeled with Version Numbers officially.
USDM WRXEngine Code - EJ205
Years It Was Made - 2001-2005
Drive by Wire - No
AVCS - No
OBD2 - Yes
Communication Method - Non CANBUS
Security System - Non Immobilized
JDM V7-V8Engine Code - EJ205 = WRX | EJ207 = STi
Years It Was Made - 2001-2004
Drive by Wire - No
AVCS - Intake Only
OBD2 - Yes
Communication Method - Non CANBUS
Security System - Non Immobilized
JDM Forester (non Forester STi models)Engine Code - EJ205
Years It Was Made - 2001+
Drive by Wire - 2001-2003 No | 2004+ Yes - See this post for more info
AVCS - Intake Only
OBD2 - Yes
Communication Method - Non CANBUS
Security System - Immobilized
JDM V9Engine Code - EJ205 = WRX | EJ207 = STi
Years It Was Made - 2005-2007
Drive by Wire - No
ACVS - Intake Only
OBD2 - Yes
Communication Method - Non CANBUS
Security System - Immobilized
JDM V10Engine Code - EJ205 = WRX/Forester | EJ207 = STi
Years It Was Made - 2008+
Drive by Wire - Yes
ACVS - Intake and Exhaust
OBD2 - Yes
Communication Method - CANBUS
Security System - Immobilized
JDM Legacy TurboEngine Code - EJ20X and EJ20Y
Years It Was Made - 2005+
Drive by Wire - Yes
AVCS - Intake and Exhaust
OBD2 - Yes
Communication Method - CANBUS
Security System - Immobilized