NOS Nitrous Oxide Plumbing Kit

NOS Nitrous Oxide Plumbing Kits: Direct Port Precision from the Pioneers

When it comes to nitrous oxide, few names carry as much weight as NOS (Nitrous Oxide Systems). Born in the late 1970s, NOS spent its earliest years proving that nitrous oxide injection was a safe, efficient, and repeatable path to serious horsepower — and the racing world took notice. Today, NOS plumbing kits represent the most refined expression of that decades-long commitment to direct port nitrous technology.

What Makes a NOS Plumbing Kit Different?

Nitrous oxide plumbing kits are purpose-built for enthusiasts who already own a base NOS system but need the intake manifold hardware to complete or expand a direct port injection setup. Rather than purchasing a full system, these kits deliver exactly the components that matter most for precise, cylinder-by-cylinder delivery of fuel and nitrous.

NOS plumbing kits are engineered around the brand's legendary Fogger nozzle technology — widely recognized as the original direct port wet nozzle design. The Fogger nozzle's geometry promotes superior atomization of both the nitrous and fuel charge, which translates to more consistent combustion and more predictable power output across every cylinder.

Pro Shot Fogger Plumbing Kit (V8 Applications)

One of the flagship offerings in the NOS plumbing kit lineup is the Pro Shot Fogger Plumbing Kit for V8 engines. Designed for direct port injection, this kit is rated for up to 500 horsepower and ships with NOS's 13700B Fogger nozzles, adjustable jetting (making it tunable from approximately 100–500 HP), and all necessary distribution blocks and hardware for a complete intake manifold installation. A fuel solenoid is included, and jets use a flare-type design for reliable sealing under high-flow conditions.

Half Nitrous Plumbing Kit (4-Cylinder / EFI Applications)

For four-cylinder and EFI platforms, NOS offers the Half Nitrous Plumbing Kit (part number 0030NOS). This kit is a partial kit designed specifically for use with the 05030NOS system, covering four cylinders with direct port fogger nozzles in a wet configuration without solenoids — ideal for builders integrating NOS hardware into a custom system. It ships with Fogger2-style nozzles, #18 and #20 jets, distribution blocks, and the fittings and hardware needed for a clean, functional installation.

Key Features Across the NOS Plumbing Kit Lineup

• Direct port injection delivers nitrous and fuel to each cylinder individually for maximum distribution uniformity
• Adjustable power levels via interchangeable jet sizing — tune your shot without replacing major components
• Fogger nozzle atomization ensures a finely mixed charge for more complete combustion
• Compatible with both carbureted and EFI applications depending on kit selection
• EDM-machined jets across the NOS line ensure consistent, accurate flow from jet to jet

Whether you're building a purpose-built race car or upgrading an existing street machine, NOS plumbing kits provide the direct port foundation that serious nitrous builds demand. NOS has powered more racers than any other nitrous brand — and these kits carry that same race-proven pedigree right to your intake manifold.