2008-2014 Subaru Impreza WRX EJ255 JDM Engine | 2.5L DOHC Single AVCS Turbo Motor
Vehicle Specifications
• Engine Code: EJ255 (JDM DOHC Turbo with Single AVCS)
• Displacement: 2.5 Liter (2,457cc)
• Configuration: Flat 4-Cylinder "Boxer" Turbocharged
• Valvetrain: 16-Valve DOHC with Variable Valve Timing
Vehicle Fitments
• 2008-2014 Subaru Impreza WRX (Non-STI models)
• Chassis Codes: GH8 (Hatchback), GE8 (Sedan), GRB/GVB (Widebody WRX)
• Note: Specifically designed for models utilizing the Single AVCS intake cam system.
Included Parts
• Complete JDM Engine Long Block (Block and DOHC Heads)
• Intake Manifold & Throttle Body (USDM swap recommended)
• Fuel Rails & Injectors
• Alternator, AC Compressor, & Power Steering Pump (Bonus items)
• Internal Timing Components & Sensors
Installation & Notes
• USDM Conversion: You must transfer your original USDM wiring harness, intake manifold, and all sensors to this JDM unit to ensure 100% ECU compatibility.
• Turbocharger: We recommend reusing your original USDM VF52 turbocharger or ensuring the JDM unit matches your existing downpipe/intercooler setup.
• Maintenance: We highly recommend a new timing belt kit, water pump, and spark plugs prior to installation.
• Oil: Use 5W-30 or 5W-40 Full Synthetic Motor Oil.













Description
Vehicle Specifications
• Engine Code: EJ255 (JDM DOHC Turbo with Single AVCS)
• Displacement: 2.5 Liter (2,457cc)
• Configuration: Flat 4-Cylinder "Boxer" Turbocharged
• Valvetrain: 16-Valve DOHC with Variable Valve Timing
Vehicle Fitments
• 2008-2014 Subaru Impreza WRX (Non-STI models)
• Chassis Codes: GH8 (Hatchback), GE8 (Sedan), GRB/GVB (Widebody WRX)
• Note: Specifically designed for models utilizing the Single AVCS intake cam system.
Included Parts
• Complete JDM Engine Long Block (Block and DOHC Heads)
• Intake Manifold & Throttle Body (USDM swap recommended)
• Fuel Rails & Injectors
• Alternator, AC Compressor, & Power Steering Pump (Bonus items)
• Internal Timing Components & Sensors
Installation & Notes
• USDM Conversion: You must transfer your original USDM wiring harness, intake manifold, and all sensors to this JDM unit to ensure 100% ECU compatibility.
• Turbocharger: We recommend reusing your original USDM VF52 turbocharger or ensuring the JDM unit matches your existing downpipe/intercooler setup.
• Maintenance: We highly recommend a new timing belt kit, water pump, and spark plugs prior to installation.
• Oil: Use 5W-30 or 5W-40 Full Synthetic Motor Oil.









