JDM EJ257 Subaru Impreza WRX STi 2008–2014 2.5L Direct Engine Swap with Dual-AVCS and VF48 Turbo

Description

Buy JDM EJ257 WRX STi 2.5L Engine Swap Online

Buy JDM EJ257 Subaru Impreza WRX STi 2008–2014 2.5L Direct Engine Swap with Dual-AVCS and VF48 Turbo Online

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Product Overview

The JDM EJ257 2.5L Turbo Engine is the ultimate solution for replacing or upgrading the heart of your 2008–2014 Subaru WRX STi. Featuring Dual-AVCS cylinder heads and Subaru’s reliable VF48 turbocharger, this package provides the perfect blend of factory durability, daily drivability, and aftermarket tuning potential.

Unlike many used domestic engines, our JDM take-outs are sourced with lower mileage (typically 45,000–65,000 miles) thanks to strict Japanese inspection laws. Every motor is compression tested and inspected before shipment, giving you peace of mind and a ready-to-install solution for your STi. Buy JDM EJ257 WRX STi 2.5L Engine Swap Online

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Key Features

• Engine Code: EJ257
• Displacement: 2.5L (2,457cc)
• Configuration: Turbocharged, DOHC, Boxer 4-cylinder
• Turbocharger: IHI VF48 (fast spool, wide torque band)
• Technology: Dual Active Valve Control System (AVCS)
• Output: ~305 HP stock (330–360 WHP with basic mods & tune)
• Redline: ~6,700 RPM
• Fitment: 2008–2014 Subaru WRX STi (GR/GV chassis)
• Mileage Range: 45,000–65,000 miles typical (JDM imports). Buy JDM EJ257 WRX STi 2.5L Engine Swap Online

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Why Choose the JDM EJ257

• Direct OEM Fitment – A drop-in replacement for 2008–2014 STi models.
• Proven Turbo Performance – VF48 delivers rapid spool and strong mid-range torque.
• Dual-AVCS Advantage – Optimized cam timing for better throttle response, fuel efficiency, and top-end pull.
• High Tuning Potential – Easily handles 330–360 WHP stock and 400–500 WHP with forged upgrades.
• Authentic JDM Quality – Lower-mileage engines, carefully inspected and tested. Buy JDM EJ257 WRX STi 2.5L Engine Swap Online

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Performance Potential

Out of the crate, this engine is rated around 305 HP. With common bolt-ons such as intake, exhaust, intercooler, and a professional tune, you can safely achieve 330–360 WHP on pump gas.

For enthusiasts chasing more, the EJ257 is a strong base for upgrades:

• Forged internals & ARP studs for high-boost builds
• Larger turbo options for 400+ WHP
• Flex-fuel tuning for added knock resistance and power
• Cooling & oiling upgrades to ensure long-term reliability. Buy JDM EJ257 WRX STi 2.5L Engine Swap Online

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Shipping & Warranty

We provide global shipping, with every engine carefully palletized, shrink-wrapped, and insured for safe transport. For international buyers, customs documentation is included for smooth clearance.

• Warranty: 30-day startup warranty against internal defects
• Condition: Compression-tested, low-mileage, JDM import
• Support: Technical guidance for installation and tuning

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Buyer’s Checklist

When you order this EJ257 engine swap from jdmcarpart.com, you’ll receive:

1. Genuine JDM EJ257 long block
2. Dual-AVCS cylinder heads
3. VF48 turbocharger (if included in package)
4. Compression-tested & verified low-mileage motor
5. 30-day startup warranty
6. Palletized & insured worldwide shipping
7. Expert support for installation and tuning. Buy JDM EJ257 WRX STi 2.5L Engine Swap Online

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10 Frequently Asked Questions (FAQs)

1. Is this engine a direct fit for 2008–2014 WRX STi?
Yes, it’s designed specifically for the GR/GV STi chassis. Buy JDM EJ257 WRX STi 2.5L Engine Swap Online

2. Does the package include the VF48 turbo?
Yes, most units include the VF48 turbo; check package details.

3. What mileage should I expect?
Typically between 45,000–65,000 miles.

4. Do I need to tune after installation?
Yes, tuning is recommended even on a stock setup for safety and performance. Buy JDM EJ257 WRX STi 2.5L Engine Swap Online

5. How much power can stock internals handle?
Up to ~360 WHP safely; forged internals allow 400–500+ WHP.

6. Does it come with AVCS?
Yes, Dual-AVCS is included for improved performance. Buy JDM EJ257 WRX STi 2.5L Engine Swap Online

7. What’s included in the warranty?
A 30-day startup warranty covering internal defects.

8. Can I use my USDM ECU and harness?
Yes, with proper wiring and tuning adjustments. Buy JDM EJ257 WRX STi 2.5L Engine Swap Online

9. How is it shipped internationally?
Palletized, shrink-wrapped, insured freight with customs paperwork.

10. Why buy from jdmcarpart.com?
Because we provide authentic JDM engines, tested for quality, backed by warranty, and shipped worldwide with expert support. Buy JDM EJ257 WRX STi 2.5L Engine Swap Online