| Feature | Details |
| Engine Code | FA20 / FA20D |
| Displacement | 2.0 Liters (1998cc) |
| Configuration | Horizontally Opposed (Boxer) 4-Cylinder |
| Valvetrain | DOHC 16-Valve with Dual AVCS |
| Fuel System | D-4S (Direct & Port Injection) |
| Compression Ratio | 12.5:1 |
| Condition | Used, JDM Import (Low Mileage) |
This engine is a direct replacement for the following models:
To ensure a 100% plug-and-play experience and maintain emissions compliance, please note the following:
Long Block Use: You must transfer all your original accessories to the JDM long block.
D-4S System: Use your existing Direct Injection (DI) Computer (the silver box mounted on the engine) to ensure the high-pressure fuel system communicates correctly with your ECU.
Maintenance: We strongly recommend replacing the Spark Plugs (OEM Denso/Subaru), Rear Main Seal, and PCV Valve while the engine is out.
Oil Recommendation: Use only high-quality 0W-20 Full Synthetic oil to protect the tight tolerances of the AVCS cam phasers.