NOS Adjustable Fuel Pressure Safety Switch

The NOS Adjustable Fuel Pressure Safety Switch is an essential failsafe component engineered specifically for nitrous oxide systems. By continuously monitoring fuel system pressure in real time, this switch automatically interrupts nitrous activation the moment pressure drops below a user-defined threshold — protecting the engine from dangerous lean conditions that can cause catastrophic internal damage.

Key Features:

• Adjustable pressure threshold — the activation set point is fully tunable to match a wide range of fuel systems and nitrous configurations
• Normally open and normally closed configurations available — accommodates different wiring layouts and circuit requirements across the product line
• Automatic nitrous shutoff — instantly disables nitrous engagement if fuel pressure drops below the programmed set point
• Multiple pressure ranges available — variants across the product line support both low-pressure carbureted systems and high-pressure fuel-injected setups
• Standard NPT thread fitting — installs directly into compatible fuel system ports or inline adapter manifolds without specialized tooling
• Professional-grade construction — designed and built to withstand the rigors of racing and high-performance street use

Racing Use Only. WARNING: It is against the law to install this part on an emissions-controlled vehicle.

About NOS (Nitrous Oxide Systems):

NOS has powered more racers than any other nitrous brand in the industry. Trusted by weekend enthusiasts and professional competitors alike, NOS delivers the reliability, precision, and performance that serious nitrous users demand. The Adjustable Fuel Pressure Safety Switch line is a foundational safety upgrade for any nitrous-equipped vehicle — select the correct pressure range and circuit configuration for your application from the available variants in this product line.