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Radium FPR Kit Green
Subaru STI 2008-2021
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Features & Product Details
RallySport Direct carries highly engineered products designed to improve the performance and longevity of your vehicle brought to you by Radium Engineering.
This is The Radium Engineering Fuel Pressure Regulator Kit. This particular kit has been designed to be used in the USDM 2008-2021 WRX/STI EJ257 models, and it replaces the OEM fuel pressure regulator and damper assembly. The factory STI fuel line routing uses a quasi-dead-end system that circulates fuel through the regulator and bypasses the engine. Fuel is only routed to the engine when there
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