EJ207 2.0L DOHC Turbocharged Engine with AVCS

The Subaru EJ207 is a legendary 2.0L DOHC high-revving boxer engine that defined the V7 "Bugeye" era of Japanese rally performance. Imported directly from Japan, this engine is considered the "holy grail" for GD chassis builders due to its sophisticated AVCS (Active Valve Control System) for optimized torque delivery and its factory-balanced high-RPM design with forged internal components. This JDM power plant is an ultimate replacement for worn domestic EJ205/EJ255 engines, providing a more robust, responsive, and exhilarating driving experience. It is rated at approximately 280hp and 309 lb-ft of torque from the factory, with a redline capability of 8,000 RPM. The engine comes complete with the intake manifold, fuel rails, injectors, a genuine JDM VF-Series STI Turbocharger, alternator, power steering pump, A/C compressor, ignition coil packs, crank and cam angle sensors, MAF sensor, and AVCS solenoid set. Installation and conversion notes are critical for optimal performance and longevity. To utilize the AVCS system's full potential, the vehicle's ECU must be tuned or replaced to control the AVCS oil control solenoids, with a dedicated JDM-swap ECU or standalone management system recommended. The engine is factory-calibrated for high-octane Japanese fuel, requiring 93+ octane premium gasoline in the US. A professional dyno-tune is highly recommended upon installation to ensure correct air/fuel ratios and longevity. Before initial startup, it is advised to install a fresh timing belt, water pump, and oil pump seals, and to fill with 5W-40 full-synthetic oil. Harness compatibility should be verified for USDM swaps, with professional inspection advised. This EJ207 engine is compatible with 2002-2003 Subaru Impreza WRX (GD/GG Chassis) as a direct bolt-in. For 2004-2007 Subaru Impreza WRX / STI models, it requires minor wiring/harness integration for AVCS activation. The engine mounts and bellhousing patterns are designed to match all WRX 5-speed and STI 6-speed manual transmissions for the GD/GG platform.