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About Us

We started NX in 1996 because we knew we could offer nitrous systems that outperformed anything on the market right out of the box. Nitrous Express had an advantage; we got to start with a blank sheet of paper.  We were able to manufacture our components with all the hot rod modifications built in. This allowed our customers to achieve better results right out of the box than other racers who were paying big money to modify our competitors’ parts. It was like a breath of fresh air! We spent the next 22 years perfecting our nitrous products while expanding our product line to include some really awesome NX nitrous and water methanol products.

Snow Performance has manufactured the highest quality Water Methanol injection systems since 2002. Nitrous Express and Snow Performance had been great friends for many years and both companies had private labeled parts back and forth to ensure their product offerings were the most complete and best quality available. To further strengthen both brands, it just made sense to combine everything into one team. To that end, Nitrous Express acquired Snow Performance on November 14th 2018.

Since then, the NX and Snow Performance team has worked constantly to offer the best customer experience possible. The NX and Snow Performance team is extremely honored to offer our customers the highest quality and best performing nitrous and water methanol products available.    


Where we are

5411 Seymour Hwy

Wichita Falls, TX 76310


What Makes NX Different from the other guys?


Bottle Valve

NX Bottle Valve Comparison

Nitrous Express has spent countless hours on the flow bench eliminating these turbulence points in its systems to minimize the boiling of the nitrous charge.  NX has designed its own bottle valve, which differs in many ways from the standard or even custom valves offered by the other companies.  The flow path of the NX “Lightning" bottle valve has only one turn, a 45-degree angle to the discharge point.  This eliminates the harsh 90-degree turn present in most bottle valves.  One company who boasts of their “Super High Flow Valve” has designed in one 45-degree turn and one 127-degree turn inside the body of the valve.  This severely restricts the flow and causes a turbulence point that sends a diluted flow of nitrous downstream to the nitrous solenoid.  Finally, the style of bottle nipple used by NX allows the nitrous to transition from the valve to the supply hose with no internal steps or restrictions.  These things may seem small or insignificant to the layperson, but on the dyno NX systems make more horsepower per pound of nitrous than anyone.


Nitrous Express Lightning 500 bottle valves feature a direct flow path which eliminates those power robbing gaseous bubbles. The result is more horsepower! The Lightning 500 will outflow any competitors valve on the market today and is recommended for all nitrous systems up to 2000 nitrous horsepower.  The 500 has a .625" siphon tube, only one 45 degree turn in the nitrous flow path and fittings that will allow the use of up to a 10AN supply line with no restrictions. The 500 is engineered to eliminate all obstructions, sharp edges or tight turns that will disrupt the smooth laminar flow of nitrous. This design minimizes boiling and gaseous nitrous in the flow path to the solenoid resulting in a nitrous system that produces more clean horsepower and is easier to tune on any car! The Lightning 500 is CNC machined from billet aluminum and is approximately ½ pound lighter than a comparable brass valve, has dual gauge ports, and interchangeable nipples that will allow the use of 4AN, 6AN, 8AN, or 10AN supply lines.






Solenoid Comparison

The key to maximizing nitrous horsepower is to keep the nitrous in liquid form until it is injected into the engine. Sharp bends cause nitrous flow to become turbulent which causes gaseous bubbles to form in the nitrous flow. Liquid nitrous makes more power than gaseous nitrous – Period!

NX Lightning solenoids feature an improved flow path that allows nitrous / fuel to enter above the seat and exit out the bottom for flow unmatched by any other solenoid on the market. Lightning nitrous solenoids feature an integrated purge port which allows you to connect a purge valve directly to the nitrous solenoid. Purging through the body of the solenoid eliminates the air pocket between the purge valve and the solenoid orifice. Lightning fuel solenoids feature a fuel bypass port which allows you to connect a small return line to the tank. This eliminates trapped air between the fuel pressure regulator and the fuel solenoid which eliminates the lean spike associated with other solenoids. Lightning Series solenoids feature CNC aluminum bodies topped with Carbon Fiber cans for the ultimate in weight savings. Nitrous Express only uses the highest quality, made in the USA components in its solenoids. Do not be fooled by low price come-ons, the solenoids are the most important component of a nitrous system.







NX Plate Closeup

Nitrous Express plates are the most technically advanced nitrous plates on the market. Our nitrous plates are CNC machined from one piece of 6061 billet aluminum to ensure the highest accuracy and best fit. The internal CNC machined passages provide excellent nitrous/fuel distribution as well as superior cylinder to cylinder distribution. This results in maximum horsepower and reliability. With no spray bars to sag, split, block airflow, or damage this is truly the Next Generation in nitrous plate technology.