New & Used Engines

Experience the pinnacle of Subaru performance with this low-mileage JDM 2015-2021 Subaru WRX STI EJ257 2.5L Turbo Engine. This “Version 10” (V10) spec EJ257 is the refined, high-output heart of the final-generation STI, featuring advanced Dual AVCS (Active Valve Control System) for optimized torque and high-RPM power. Sourced directly from pristine Japanese donor vehicles, these units are meticulously inspected for internal health, ensuring they meet the high standards required for US-spec STI restorations and performance builds. Whether you are replacing a spun-bearing block or upgrading your WRX, this EJ257 delivers the legendary flat-four rumble and turbo-boosted reliability that defines the STI legacy.