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2015 2016 2017 2018 2019 2020 2021 Subaru WRX STI 2.5L DOHC Turbo AVCS Engine JDM EJ257 V10

Sale price $5,299.99
Regular price $6,299.99 Save $1,000 (15%)

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Make

Subaru

Product Fitment

08-21 WRX STI

Mileage

36k

Engine Design

4-stroke

Engine Type

Turbocharged

Warranty

30

90 Days Warranty . Compression Tested . Insured Shipping

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+1 (253) 536 6855

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.

Vehicle Specifications

  • Year Range: 2015, 2016, 2017, 2018, 2019, 2020, 2021

  • Make & Model: Subaru WRX STI (VA Chassis)

  • Engine Code: EJ257 (2.5L DOHC 16-Valve Turbocharged Flat-4)

  • Performance Tech: Dual AVCS (Intake & Exhaust Variable Valve Timing)

  • Configuration: Horizontally Opposed "Boxer" 4-Cylinder

  • Origin: Japan (Genuine OEM Japanese Domestic Market Performance Import)

  • Condition: Premium Used Performance Import (Compression/leak-down verified, timing components inspected, and certified low-mileage donor)

Vehicle Fitments

  • Direct US-Spec Replacement: 2015-2021 Subaru WRX STI (VA Chassis).

  • Compatibility: Designed specifically for the EJ257-equipped VA platform.

  • Fitment Note: This is a drop-in replacement for existing EJ257 engines. If retrofitting into older Subaru chassis, please consult a performance shop regarding the required Dual-AVCS ECU management and wiring harness integration.

JDM Seattle offers specialized shipping with surcharges for services like liftgate delivery. They promise same-day shipping for orders before 1 PM PST, with next-day dispatch for later orders. Shipping is within the 48 contiguous states, with special arrangements for other US territories. Customers receive tracking numbers and are responsible for return shipping costs. Queries can be directed to their customer service. Shipping policy acceptance is required.

JDM Seattle terms require users to comply with conditions when using their website and services. It includes accepting terms upon access, being of legal age, and the right to refuse service. Information may not always be accurate, and service and prices can change without notice. They offer online-exclusive products, reserve order refusal rights, and may use third-party tools and materials. Users' feedback may be used freely, and personal information is protected under their Privacy Policy.

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Free Local Delivery

Enjoy fast and free delivery within our local area, ensuring your parts arrive quickly, safely, and hassle-free.

90 Days Warranty

90-day warranty for non-performance engines, 30 days for performance. Covers internal parts, excludes labor. Read more

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