Fuel Injection Pressure Regulator is a direct fit for the following:

2004-2006 Subaru Baja Turbo
2004-2005 Subaru Forester XT Turbo

2004-2007 Subaru Impreza WRX STI

2.5L 2458CC H4 GAS DOHC Turbocharged Engines

Genuine Subaru Part Number: 22670AA351