Upgrade your Subaru with a genuine JDM EJ257 2.5L Turbo Engine, designed for 2015–2020 WRX STI models. This engine features Dual AVCS (Active Valve Control System) for improved performance, throttle response, and efficiency—perfect for OEM replacement or performance builds.
Engine Details
Engine Code: EJ257
Displacement: 2.5L
Aspiration: Turbocharged
Valve Control: Dual AVCS
Fuel Type: Gasoline
Configuration: Horizontally Opposed (Boxer)
Condition: Used JDM Import
Mileage: Typically 45k–65k miles
Vehicle Compatibility
Subaru WRX STI
Model Years: 2015, 2016, 2017, 2018, 2019, 2020
(Compatibility may vary depending on ECU and supporting components. Please verify before purchase.)
What’s Included
Complete long block
Intake manifold
Valve covers
Oil pan
(Accessories such as turbo, alternator, and A/C compressor may vary—contact us for exact details.)
Why Buy from JDM of San Diego?
✔ Authentic JDM engines
✔ Compression-tested units
✔ Trusted local supplier
✔ Nationwide shipping available
✔ Excellent option for performance or replacement
Shipping & Warranty
Fast nationwide shipping available
Warranty 30 day warranty
🚚 Nationwide shipping available
💬
Engine Specs
| Specification | Details |
|---|---|
| Engine Code | B20B |
| Displacement | 2.0L (1973cc) |
| Valvetrain | DOHC non-VTEC, 16 valve |
| Donor vehicle | 1997 to 2001 Honda CR-V (JDM) |
| Mileage | Around 50,000 to 70,000 km |
| Included | Longblock. Wiring harness and ECU available on request. |
Why This Engine Works So Well
A B20B engine for sale like these gives builders a strong base to work from. Many shops choose these standard engine for three reasons:
- It has a thick block that holds up under boost
- The long stroke design gives good torque off the line
- It bolts into many Honda and Acura chassis with minor changes
- It pairs well with a VTEC head for a B20/VTEC upgrade
Where This Engine Comes From
We import this motor for sale directly from Japan. Japan’s inspection rules push owners to sell cars early, often with low mileage. This means you get a strong Honda B20 engine with plenty of life left. Our team checks the import history and paperwork before we list it for sale.
Warranty and Shipping
Each engine comes with a 90-day warranty from the date you receive it. We ship across the United States from our shop in Orlando, Florida. Most orders go out within 2 to 3 business days.
Related Products
Is this engine compatible with my US-spec vehicle?
Yes, but some sensors or accessories may need to be swapped from your original US-spec engine to ensure proper wiring and check-engine light compliance.
What is the average mileage on your imported JDM engines?
Most of our imported JDM engines have between 45,000 to 65,000 miles on them, as verified by export certificates from Japan.
Do you offer shipping outside the United States?
Currently, we only ship to the continental United States. For international orders, you must arrange your own freight forwarding service.
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JDM Experts Available
Low-mileage Japanese imports inspected for quality. Shop with confidence. Our team of JDM specialists is here to guide you.
Up to 60 Days Warranty on Engines & Transmissions.
Affordable Products in the best quality
Benefit from our knowledgeable expert mechanics
Various available JDM engines in warehouse
