Radium FPR RA Fuel Pressure Regulator Kit - Subaru STI 08-21 Category_Catch Cans and Tanks Both kits are compatible with

Both kits are compatible with all Radium Fuel Rails for the Subaru EJ engines (excluding 20-0499 Fuel Rails)

Limits fuel aeration for starvation protection insuring constant delivery to the pickup

As you would expect from PRP we have put some smarts into our new gears and have a bunch of improvements over the industry standard gears you’re used to

Through this partnership

Radium FPR RA Fuel Pressure Regulator Kit - Subaru STI 08-21 Category_Catch Cans and Tanks Both kits are compatible withThis 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 regulator, bypassing the engine. Fuel is only routed to the engine when there is demand. The Radium FPR kit re routes fuel to cycle through the fuel rails before reaching the regulator and returning to the