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Radium Engineering top‑feed fuel rails for Subaru WRX/STI EJ‑series engines feature an auxiliary port on the rail's top surface, making them suitable where AVCS clearance is a concern. CNC‑machined and anodized, these rails support top‑feed injector configurations and are compatible with E85 fuel, offering a durable, precision‑made upgrade for EJ‑series top‑feed installations.
Radium Engineering Subaru WRX/STI EJ-Series Engines Top Feed Fuel Rails (w/ Top Port)
