Original price was: $5,459.99.$3,890.00Current price is: $3,890.00.
Direct import JDM Subaru Forester STi EJ25/EJ255 Turbo Engine with TY856WL4CC 6-Speed Transmission from the SG9 platform. Low-mileage, compression-tested, inspected, and shipped worldwide by jdmcarpart.com — your trusted source for authentic JDM cars, engines, transmissions, parts, and accessories.
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The JDM Subaru Forester STi EJ25 Engine with TY856WL4CC 6-Speed Transmission (SG9, EJ255) is one of the most desirable performance powertrains Subaru ever produced, blending the rugged practicality of the Forester platform with the rally-bred performance DNA of the STi lineup. At jdmcarpart.com, we specialize in bringing authentic Japanese domestic market engines and drivetrains directly to enthusiasts around the world, and the SG9 Forester STi combination of the EJ255 2.5-liter turbocharged flat-four and the robust 6-speed manual gearbox is among the most sought-after setups for Subaru tuners, restorers, and performance builders. Buy JDM Forester STi EJ25/EJ255 Engine & 6MT Online
Unlike a standard Forester, the STi-badged SG9 was a limited-production, Japan-only model that combined practicality with motorsport engineering. Its heart, the EJ25/EJ255 turbocharged engine, produces strong low-end torque and mid-range surge, while its matching TY856WL4CC 6-speed transmission delivers precise, reliable gear changes and legendary Subaru all-wheel-drive strength. Together, this package creates one of the most versatile, balanced, and exciting drivetrains ever fitted to a performance crossover. Now, thanks to direct import availability, you can bring this rare JDM setup into your build — whether you’re restoring an SG9 Forester, upgrading your Legacy or WRX, or creating a custom Subaru hybrid project.
The EJ25 engine family is Subaru’s iconic 2.5-liter flat-four platform, renowned for its strong torque delivery and adaptability to tuning. The EJ255 variant used in the SG9 Forester STi features AVCS (Active Valve Control System), a factory turbocharger (commonly VF41 or similar twin-scroll), and a compression ratio around 8.2:1. Factory output is approximately 265 PS (≈ 261 HP) and 278–280 lb-ft of torque, with a smooth, broad powerband designed for responsive daily use and spirited driving. Buy JDM Forester STi EJ25/EJ255 Engine & 6MT Online
Key highlights include:
This makes the EJ255 in STi trim one of the most exciting EJ motors — more refined than early EJ20 units, more torquey than EJ207, and paired perfectly with Subaru’s robust 6-speed gearbox.
The TY856WL4CC 6-speed manual gearbox is one of Subaru’s strongest and most reliable transmissions, sharing architecture with the WRX STi’s 6-speed but tuned for the Forester STi. It is designed to handle significant torque, maintain smooth engagement, and provide precise ratios for both street and performance driving. Buy JDM Forester STi EJ25/EJ255 Engine & 6MT Online
Transmission specs include:
This transmission is legendary for its strength and durability, capable of handling 350–400+ HP builds when maintained and paired with the right clutch and driveline components. For builders planning more aggressive setups, this gearbox provides peace of mind with its robustness compared to weaker 5-speed alternatives. Buy JDM Forester STi EJ25/EJ255 Engine & 6MT Online
While designed for the SG9 Forester STi (2004–2008), this drivetrain package is highly adaptable:
At jdmcarpart.com, we provide guidance on wiring, ECU compatibility, differential ratios, and clutch/flywheel pairing to make your swap successful. Buy JDM Forester STi EJ25/EJ255 Engine & 6MT Online
This makes the EJ25/EJ255 + 6MT pairing a superb foundation for performance enthusiasts — responsive on the street, capable at the track, and reliable under boost. Buy JDM Forester STi EJ25/EJ255 Engine & 6MT Online
Because we don’t just sell engines — we deliver authentic JDM quality. Our process ensures you get a motor and gearbox that’s been:
We are a trusted partner for Subaru enthusiasts across the globe, supplying engines, transmissions, and accessories with transparency and care. Buy JDM Forester STi EJ25/EJ255 Engine & 6MT Online
1. Is this engine and transmission package a direct fit for my Forester XT?
Yes, for SG9 STi models it’s direct. For non-STi Foresters or WRX/Legacy swaps, wiring and ECU modifications are required.
2. What’s included with the package?
EJ255 long block, turbo, TY856WL4CC 6MT, and accessories depending on stock (always check inclusions).
3. What’s the typical mileage of these JDM units?
Most come with 40,000–60,000 miles due to Japan’s Shaken law. Buy JDM Forester STi EJ25/EJ255 Engine & 6MT Online
4. Does it include the turbo?
Yes, the factory VF41 (or equivalent) turbo is typically included.
5. How much power can the stock EJ255 handle?
Up to ~330 WHP safely; 400+ WHP possible with forged upgrades. Buy JDM Forester STi EJ25/EJ255 Engine & 6MT Online
6. How strong is the TY856WL4CC gearbox?
It can handle 350–400+ HP reliably, far stronger than Subaru’s 5-speeds.
7. Does it come with warranty?
Yes, a 30-day startup warranty is included.
8. Do I need a new ECU?
For swaps into non-SG9 cars, yes. For SG9 STi replacement, OEM ECU works. Buy JDM Forester STi EJ25/EJ255 Engine & 6MT Online
9. Can this drivetrain be shipped worldwide?
Yes, we ship globally with insured freight and customs support.
10. Why buy from jdmcarpart.com?
Because we source genuine, tested, low-mileage JDM engines, provide warranty, and support your swap with expert advice. Buy JDM Forester STi EJ25/EJ255 Engine & 6MT Online
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