Fuel Pressure Regulator Non-Bypass w/Gauge

The NITROUS EXPRESS Fuel Pressure Regulator Non-Bypass w/Gauge is an essential component for any serious fuel system upgrade or performance tuning application. Designed for builders and mechanics working with forced induction systems, carbureted engines, or precision fuel delivery setups, this regulator maintains consistent fuel pressure while providing real-time feedback through an integrated gauge. Unlike bypass-style regulators that vent excess fuel back to the tank, this non-bypass design ensures all fuel flows directly to the engine, making it ideal for high-demand applications where fuel volume control matters.

Built from black anodized aluminum, this regulator delivers reliable pressure regulation across a 1–11 psi range, accommodating both low-pressure carbureted systems and moderate-boost fuel-injected engines. The unit features a 3/8-inch NPT inlet, dual 3/8-inch NPT outlets for flexible plumbing configurations, and a dedicated 1/8-inch NPT gauge port for direct pressure monitoring. The included fuel pressure gauge allows you to verify system performance and diagnose issues at a glance, eliminating guesswork during setup or troubleshooting. Non-bypass operation means no wasted fuel and maximum delivery efficiency—critical when tuning tight fuel curves or operating on the edge of engine performance limits.

This kit suits carburetor-fed hot rods, nitrous-assisted engines, EFI conversions, and street/strip vehicles requiring adjustable fuel pressure control. The compact 4.3 x 3.3 x 4.8-inch footprint and lightweight 0.85-pound construction make it easy to integrate into tight engine bays or custom fuel system layouts. Installation is straightforward for anyone with basic fuel line plumbing experience—simply feed fuel in via the inlet, route dual outlets to carburetor or fuel rail, and connect the gauge port to your pressure gauge. Verify inlet/outlet thread sizes match your fuel lines (3/8 NPT standard) and test the system under load to confirm your target pressure range before full operation.