Adjustable Fuel Pressure Regulator with Gauge for BMW E39 5 Series
Stock fuel systems often restrict flow when you upgrade your intake or exhaust. This adjustable fuel pressure regulator overrides those factory limits, sending the exact amount of fuel your engine demands. Designed to complement BMW E39 5 Series performance builds, its universal fittings also handle many other platforms. You gain up to ten horsepower by dialing in precise rail pressure rather than relying on guesswork. The integrated gauge lets you monitor changes instantly, keeping your air-fuel mixture safe during aggressive driving.
Benefits & Tips
Pair this regulator with a forced induction kit for instant power gains under boost. Adjust the external knob while warming up the engine, then secure the locknut once you hit your target numbers. Routinely check the needle during long drives to catch pressure drops that signal a clogged filter or weakening pump.
- Housing Construction: CNC billet aluminum blocks withstand sustained heat and vibration.
- Adjustable Range: Calibrate between 1 and 140 PSI for daily cruising or track duty.
- Flow Design: Balanced 1:1 ratio maintains steady feedback at idle and wide-open throttle.
- Color Choices: Select red, blue, silver, or black to complement your engine bay layout.
Package Includes
One fuel pressure regulator, one dedicated gauge hose, and all mounting hardware displayed in the listing photos.
Warnings & Reminders
This is a precision tuning part intended for experienced DIY builders. Step-by-step fitting guides are not provided, so hiring a certified technician is highly recommended to guarantee correct vacuum routing and leak-free operation.
All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.
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