2008-2021 Subaru WRX STI JDM Engine - EJ257 2.5L Turbo V10 AVCS
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Product Fitment:2008-2021 WRX STI
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Mileage:40360
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Engine Design:4-stroke
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Engine Type:Turbocharged
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Warranty:30
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Available In Stock:1 Items
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Product Information
2008-2021 Subaru WRX STI JDM Engine - EJ257 2.5L Turbo V10 AVCS
Upgrade your vehicle with this high-performance JDM EJ257 2.5L Turbo engine. Specifically sourced from Japanese-spec Subaru WRX STI models (2008-2021), this "Version 10" (V10) power plant features the legendary boxer layout, dual AVCS (Active Valve Control System) for both intake and exhaust, and a semi-closed deck block design for superior durability. Whether you are replacing a blown motor or starting a high-boost performance build, this JDM long block provides the perfect foundation for reliability and power.
| Feature | Specification |
| Engine Code | EJ257 (V10 JDM Spec) |
| Engine Type | 2.5L Flat-Four (Boxer) Turbocharged |
| Valvetrain | DOHC, 16-Valve |
| Valve Timing | Dual AVCS (Intake & Exhaust) |
| Block Design | Semi-Closed Deck |
| Compression Ratio | 8.2:1 - 8.4:1 |
| Fuel Delivery | Multi-Point Injection |
| Make | Model | Year Range |
| Subaru | WRX STI | 2008–2021 |
| Subaru | WRX | 2008–2014 |
| Subaru | Forester XT | 2008–2013 |
| Subaru | Legacy GT | 2008–2012 |