Radium RA-Series FPR Fuel Pressure Regulator Kit for Subaru STI 08-21 EJ257
Radium RA-Series FPR Fuel Pressure Regulator Kit for Subaru STI 08-21 EJ257. This kit is designed for use in the USDM 08-21 Subaru WRX STi (EJ257 only). It replaces the OEM fuel pressure regulator and damper assembly, shown below. The factory STi fuel line routing uses a quasi dead-end system that circulates fuel through the […]