EJ257 Engines and EJ255 to replace EJ257

Shop premium JDM EJ255 and EJ257 replacement engines at J-Spec Auto Sports. We import low-mileage turbocharged Subaru engines directly from Japan and inspect every engine before adding it to our inventory. Our technicians also perform compression tests to help ensure dependable performance and long service life.

This category features the JDM Forester STI DOHC Turbocharged 2.5L EJ255 engine, a popular replacement for many Subaru EJ257 applications. The Forester STI EJ255 shares the same semi-closed deck design, dual AVCS cylinder heads, and 2.5-liter displacement as the EJ257. Many Subaru owners choose this engine because it offers outstanding reliability, excellent value, and strong performance for factory replacements and performance builds.

The JDM Forester STI EJ255 is commonly used to replace failed EJ257 engines found in 2004–2021 Subaru WRX STI models. Most installations require transferring the original STI intake manifold, turbocharger, exhaust manifold, sensors, wiring harness, cam gears, oil pan, and other vehicle-specific accessories. Our experienced team can help you identify the required components and verify compatibility before you order.

J-Spec Auto Sports specializes in JDM EJ255 replacement engines for EJ257 vehicles. We offer competitive pricing, fast nationwide shipping, and knowledgeable technical support. Whether you’re restoring a stock STI or building a reliable street car, our compression-tested JDM engines provide a dependable solution backed by years of Subaru experience.