Skip to content
Used engines, transmissions and Harley-Davidson motorcycles shipped nationwide. 90 day warranty. +1 503-551-4892  ·  Sales@hanedaautos.com  ·  Grand Rapids, Michigan
2004-2005 Subaru Legacy GT 2.0L DOHC Turbo Engine JDM EJ20X Twin-Scroll

2004-2005 Subaru Legacy GT 2.0L DOHC Turbo Engine JDM EJ20X Twin-Scroll

Stock number SUB-EN-EJ20X-003

$799.99

In stock, ships from Grand Rapids

Stock numberSUB-EN-EJ20X-003
MakeSubaru
Engine codeEJ20X
Fits model years2004-2005
CategoryEngines, Subaru Engines
Shipping weight280 lbs (estimated)
ConditionUsed, imported from Japan, tested before dispatch
Warranty90 days from delivery

Prefer to write it down? Call +1 503-551-4892 or email Sales@hanedaautos.com.

Get a freight price first

This ships by freight. It travels bolted to a pallet, and the price depends on your ZIP, whether the address is residential and whether you need a liftgate. Order online and we will send the freight price before anything leaves the floor, or get the price up front below.

Checking fitment? Call +1 503-551-4892 or email Sales@hanedaautos.com with your VIN and we will confirm it against this unit.

About this unit

FeatureDetail
Engine CodeEJ20X (Dual AVCS / Twin-Scroll)
Displacement2.0 Liter
ConfigurationHorizontally Opposed (Flat-Four)
TurbochargerVF38 or VF44 (Twin-Scroll)
Valve TrainDOHC 16-Valve Dual AVCS
HorsepowerApprox. 260–280 hp
Compression Ratio9.5:1

Vehicle Fitment

This engine is a popular performance replacement for the following North American models:

  • Subaru Legacy GT (Sedan & Wagon): 2004, 2005 (USDM 4th Gen)

  • Subaru Outback XT: 2005, 2006

  • Chassis Compatibility: BL (Sedan) and BP (Wagon).

JDM EJ20X to USDM EJ255 Swap Guide

To successfully install the EJ20X into a North American Legacy GT, professional Subaru tuners recommend the following “Integration” steps:

  1. Turbo & Exhaust: The EJ20X uses a Twin-Scroll Turbocharger and Header system. To use this, you must use the JDM downpipe. If you prefer to keep your USDM exhaust, you must swap your original USDM Single-Scroll Header, Up-pipe, and Turbo onto the JDM block.

  2. Dual AVCS vs. Single AVCS: The EJ20X has cam sensors on the exhaust side (Dual AVCS). The USDM ECU only supports Intake AVCS. Most installers leave the exhaust AVCS unplugged (it defaults to a safe timing) or use a standalone ECU to harness the full power of Dual AVCS.

  3. Wiring Harness: Always retain and use your original USDM Engine Wiring Harness. You will need to swap over your original USDM sensors (Crank, Cam, Knock) to ensure the harness plugs are compatible.

  4. Intake Manifold: We recommend transferring your original USDM Intake Manifold to ensure all vacuum lines, Tumble Generator Valves (TGV) deletes, and sensors match your factory harness.

  5. Oil Pan: Inspect the JDM oil pan. If your Legacy uses a specific oil cooler setup, ensure the JDM pan provides the necessary clearance or swap to your USDM pan.

  6. Tuning: Because of the displacement drop from 2.5L to 2.0L, a custom ECU reflash (Tune) is mandatory to ensure correct fueling and timing maps.

What is included

You receive exactly what is pictured. Engines are supplied as a long block assembly with the components visible in the photos. Accessories such as the alternator, starter, intake manifold or sensors are included only where you can see them on the unit, so check the photographs before ordering and ask us if anything is unclear.

Before you order

  • Confirm the engine code against your own vehicle, not just the model year.
  • Japanese market units can differ from the US version in intake, loom and sensors.
  • Replace the timing components, water pump and seals while the unit is out. It is cheap insurance on an engine this age.
  • Keep your original accessories until the swap is finished and running.

Others that fit a similar job

All subaru engines
Scroll to Top