2006-2011 Subaru Impreza EJ25 JDM Engine | 2.5L SOHC AVCS Motor EJ253

Vehicle Specifications

• Engine Code: EJ253 (JDM SOHC with i-AVLS/AVCS)

• Displacement: 2.5 Liter (2,457cc)

• Configuration: Flat 4-Cylinder "Boxer" Naturally Aspirated

• Valvetrain: 16-Valve SOHC with Variable Valve Lift

 

Vehicle Fitments

• 2006-2011 Subaru Impreza (2.5i Base, Premium, and Outback Sport models)

• Chassis Codes: GD, GG (2006-2007) and GE, GH (2008-2011)

• Note: Specifically designed for models utilizing the 4-wire AVLS oil pressure switches on the cylinder heads.

 

Included Parts

• Complete JDM Engine Long Block (Block and SOHC i-AVLS Heads)

• Intake Manifold & Throttle Body

• Fuel Rails & Injectors

• Alternator, AC Compressor, & Power Steering Pump (Bonus items)

• Coil Packs & Engine Sensors

 

Installation & Notes

• USDM Conversion: Use as long block and must transfer your original USDM intake & exhaust manifolds, coil packs, spark plugs, fuel rail, wiring harness and all sensors to this JDM unit to ensure 100% ECU compatibility.

• EGR Port: Some JDM units lack the EGR port on the driver-side head; you may need to perform a simple block-off modification.

• Maintenance: We highly recommend a new timing belt kit, water pump, and spark plugs prior to installation.

• Oil: Use 5W-30 Full Synthetic Motor Oil.