Universal AN10 EFI Adjustable Fuel Pressure Regulator with 0–160 PSI Gauge – Black / Red
Universal AN10 EFI Adjustable Fuel Pressure Regulator with 0–160 PSI Gauge – Black / Red
High-Flow AN10 Adjustable EFI Fuel Pressure Regulator
Build a cleaner, more controllable performance fuel system with an adjustable billet-style fuel pressure regulator designed for high-flow EFI applications. The regulator features large AN10 feed ports, a dedicated return connection, vacuum / boost reference capability, an external pressure adjustment screw and an included pressure gauge for fast system setup and monitoring.
Materials & Construction
The regulator body is machined from lightweight aluminum with an anodized exterior finish for corrosion resistance and a premium motorsport appearance. A rigid upper diaphragm housing, stainless hardware and threaded AN-style ports create a compact assembly suitable for custom engine bays and performance fuel-delivery installations.
Pressure Control
The regulator provides an adjustable base fuel-pressure range suitable for EFI tuning, while the included 0–160 PSI gauge gives a clear visual reference during setup and diagnostics. The vacuum / boost reference port allows fuel pressure to respond to intake-manifold pressure in forced-induction or naturally aspirated configurations.
Connection Layout
- Feed Ports: dual high-flow AN10-style inlet connections
- Return Port: dedicated return connection
- Gauge Port: pressure-gauge connection
- Reference Port: vacuum / boost reference nipple
Available Finishes
- Black – understated motorsport finish.
- Red – high-contrast anodized performance finish.
Compatible Applications
The regulator is designed for universal custom EFI fuel systems and is commonly used in performance builds, including BMW E30 applications and other vehicles converted to high-flow AN-style fuel plumbing.
Installation Guide
- Disconnect battery power and safely relieve all fuel-system pressure.
- Mount the regulator securely in the engine bay using the supplied bracket or a rigid custom mounting point.
- Connect the fuel-feed lines to the regulator inlet ports using compatible AN fittings and fuel-rated hose.
- Connect the return line from the regulator to the fuel tank return circuit.
- Install the pressure gauge and connect the vacuum / boost reference hose to the intake manifold.
- Prime the fuel system and check all fittings carefully for leaks.
- Start the engine and adjust base fuel pressure using the top adjustment screw while monitoring the gauge.
- Lock the adjustment and verify pressure response under operating conditions.
Why Upgrade?
A dedicated adjustable regulator gives a tuned or modified engine more precise control over fuel pressure and provides the flexibility needed when upgrading pumps, injectors, fuel rails or forced-induction hardware.
FAQ
Is the 0–160 PSI figure the regulator adjustment range?
No. 0–160 PSI is the scale of the included pressure gauge. The regulator is adjusted to the fuel pressure required by the engine and fuel-system setup.
Is this only for BMW E30?
No. It is a universal performance regulator that is also commonly used in BMW E30 and other custom EFI applications.
Does it include a pressure gauge?
Yes. A pressure gauge and AN-style fittings are included with the kit.
Can it be used with turbo or supercharged engines?
Yes. The vacuum / boost reference connection allows the regulator to respond to manifold pressure.
Which finishes are available?
Black and red anodized finishes are available.