*Standard Version* The BLOX Racing Adjustable FPR is an affordable and easy-to-install alternative to those complicated and expensive aftermarket units. This billet aluminum piece installs onto the factory fuel pressure regulator, turning it into an adjustable unit, allowing users to properly tune the air / fuel ratio. This is ideal for any aftermarket products requiring a bump in fuel ...
This kit is designed for use in the USDM 2008-2019 Subaru WRX STi (EJ257 only) and 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 replaces the factory regulator and ...
This kit is designed for use in the USDM 2008-2019 Subaru WRX STi (EJ257 only) and 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 replaces the factory regulator and ...