Radium Fuel Pressure Kit 08-21 Subaru Sti Black radium ls9 fuel rails - Multi Point Group

- Multi Point Group

Included are two M5x0

This kit is for Subaru EJ race engines that cannot be used on public roads

and an O-ring sealed dipstick

Subaru WRX STI 2015-current

Radium Fuel Pressure Kit 08-21 Subaru Sti Black radium ls9 fuel rails - Multi Point GroupThe Radium engineering FPR kit replaces the factory regulator and re routes fuel to cycle through the engine's rails before reaching the regulator and returning to the tank. This is the preferred fuel line routing by Subaru tuners trying to address stumbling issues. The Radium Fuel Pressure Regulator offers adjustment from 20psi up with a 1: 1 vacuum reference. Interchangeable orifices allow the user to tune the regulator for any fuel pump flow. The