From Nitrous Express to Snow Performance and Snow Fuel Systems, every component is engineered to solve real problems racers face at high horsepower.
Nitrous Express was founded in 1996 with a clear objective: build nitrous oxide systems that outperform anything else on the market right out of the box. At the time, racers were forced to purchase compromised systems and spend additional money modifying parts just to make competitive power.
NX took a different approach.
Starting with a blank sheet of paper, Nitrous Express engineered its components with critical modifications already built in—eliminating the need for racers to rework parts before making a single pass.
Starting From a Clean Sheet of Paper
Unlike manufacturers constrained by legacy designs, Nitrous Express was free to rethink nitrous system components from the ground up. This allowed NX to address long-standing limitations in flow, distribution, and consistency that racers had learned to work around.
That philosophy led to systems that delivered:
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Better out-of-the-box performance
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Fewer required modifications
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More horsepower per pound of nitrous
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Improved repeatability and ease of tuning
Over the following decades, NX refined this approach while expanding into water-methanol injection and high-performance fuel delivery—always guided by real-world racing demands.
Bottle Valve Engineering: Eliminating Turbulence at the Source
One of the earliest areas NX focused on was bottle valve flow.
Nitrous Express spent countless hours on the flow bench identifying turbulence points that cause nitrous to boil inside the system. Turbulence introduces gaseous nitrous into the flow path, reducing power and consistency before the nitrous ever reaches the solenoid.
The NX Lightning Bottle Valve Design
NX designed its own Lightning bottle valve with a direct, unobstructed flow path. Unlike conventional valves that force nitrous through harsh internal turns, the NX Lightning valve features:
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A single 45-degree turn to the discharge point
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No internal steps or restrictions at the bottle nipple
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A smooth transition from valve to supply line
These design choices reduce turbulence, minimize nitrous boiling, and deliver a denser nitrous charge—resulting in more usable horsepower on the dyno and on track.
Lightning 500 Bottle Valve: High-Horsepower Flow Without Compromise
For higher horsepower applications, NX developed the Lightning 500 bottle valve.
Key design characteristics include:
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A .625-inch siphon tube
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Only one 45-degree turn in the flow path
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Support for up to 10AN supply lines without restriction
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CNC-machined billet aluminum construction
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Dual gauge ports and interchangeable nipples
Rated for nitrous systems up to 2000 horsepower, the Lightning 500 maintains smooth, laminar flow while eliminating sharp edges and internal obstructions—producing cleaner power and making high-horsepower systems easier to tune.
Solenoid Design: Keeping Nitrous Liquid Until Injection
Solenoids play a critical role in nitrous performance. The goal is simple: keep nitrous liquid until it enters the engine.
NX Lightning solenoids are engineered around this principle.
NX Lightning Solenoid Flow Path
Unlike conventional solenoids, NX Lightning nitrous solenoids allow nitrous to:
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Enter above the seat
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Exit through the bottom of the solenoid
This straight-through flow path minimizes sharp direction changes that cause turbulence and gaseous nitrous formation.
Additional design advantages include:
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Integrated purge ports that allow purging directly through the solenoid body
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Fuel solenoids with bypass ports to eliminate trapped air between the regulator and solenoid
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CNC-machined aluminum bodies with carbon fiber cans for weight savings
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High-quality, made-in-the-USA internal components
These features improve consistency, reduce lean spikes, and enhance overall system reliability.
Plate Nitrous Technology: Distribution Without Compromise
NX plate systems were developed to correct one of the most common weaknesses in traditional plate designs: inconsistent distribution.
NX plates are:
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CNC-machined from a single piece of 6061 billet aluminum
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Designed with internal passages optimized for nitrous and fuel distribution
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Engineered for superior cylinder-to-cylinder consistency
With no spray bars to sag, split, block airflow, or become damaged, NX plates deliver reliable distribution while maintaining intake airflow integrity—resulting in consistent power and improved engine safety.
Expanding Beyond Nitrous: Snow Performance Integration
Snow Performance has manufactured high-quality water-methanol injection systems since 2002. After years of collaboration and private-label component sharing, Nitrous Express acquired Snow Performance in November 2018.
This integration strengthened both brands by:
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Advancing product development
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Offering more complete power-adding solutions
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Maintaining a shared engineering-first philosophy
Today, NX and Snow Performance operate as a unified team focused on performance, reliability, and real-world results.
Snow Fuel Systems: Solving the Fuel Delivery Problem for High-Horsepower Racers
As nitrous and boosted combinations continued to push horsepower higher, one limitation became unavoidable: factory fuel delivery systems were no longer sufficient for serious racing applications.
Snow Fuel Systems was created in response to racer demand for fuel delivery solutions that could reliably support modern horsepower levels without forcing full fuel system replacements.
Built with the same engineering-first mindset as Nitrous Express, Snow Fuel Systems develops purpose-built fuel hats, rails, regulators, and related components designed for high-horsepower and racing use.
Key design priorities include:
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Consistent fuel volume at high horsepower
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CNC-machined billet components
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Clean, serviceable layouts designed for real-world racing
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Integration with TI Automotive (formerly Walbro) fuel pumps, trusted throughout professional motorsports
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Compatibility with OEM fuel tanks, reducing the cost and complexity of fuel system upgrades
Snow Fuel Systems has become a critical part of the NX ecosystem, giving racers a reliable foundation to support serious power while retaining factory tank fitment.
Why Snow Fuel Systems Matters to Racers
Fuel delivery issues don’t just limit power—they end race weekends.
Snow Fuel Systems components are designed to provide:
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Stable fuel pressure under extreme demand
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Reliable support for nitrous and boosted combinations
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Scalable solutions that grow with horsepower goals
By combining OEM tank compatibility with proven TI Automotive fuel pumps, Snow Fuel Systems helps racers build dependable fuel systems without unnecessary expense or complexity.
How the NX Platform Comes Together
With Nitrous Express, Snow Performance, and Snow Fuel Systems working together, racers can build complete power systems backed by a single engineering philosophy.
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Nitrous Express delivers controlled, repeatable nitrous horsepower
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Snow Performance manages intake air temperature and knock control through water-methanol injection
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Snow Fuel Systems ensures fuel delivery can support the demand
This unified approach allows racers to focus on tuning and driving—not chasing compatibility issues between components.
Why Engineering Consistency Matters at High Horsepower
At elevated power levels, consistency matters more than peak numbers. Flow stability, distribution, and repeatability determine whether a combination performs reliably or becomes unpredictable.
That’s why every NX, Snow Performance, and Snow Fuel Systems component is engineered to work together—removing weak points before they become failures.
Engineering First. Results Proven.
Nitrous Express, Snow Performance, and Snow Fuel Systems products are not designed around trends or marketing claims. They are engineered around flow, distribution, and repeatability—the factors that determine how much power a system makes and how reliably it delivers it.
From bottle valves and solenoids to fuel systems and water-methanol injection, every component reflects the same design philosophy: remove restrictions, control turbulence, and deliver consistent power.
That approach is why Nitrous Express remains the reference point for modern power-adder engineering.