Part number: AEM 25‑305BK. High‑capacity universal adjustable fuel pressure regulator for EFI systems. 1x AEM universal adjustable fuel pressure regulator (25‑305BK). The AEM 25‑305BK Universal High‑Capacity Adjustable Fuel Pressure Regulator is a versatile performance component designed to support high‑flow EFI fuel systems across a wide range of vehicles.
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