What makes this an RNC (Restricted Nitrous Class) system?

The RNC designation means this system is optimized to deliver the maximum possible nitrous flow through a specific jet size. This is crucial for racers who are limited by rules on how large their nitrous jets can be, allowing them to get more power from the allowed jetting.

What is included in the Nitrous Express 55040-12 kit?

This comprehensive kit includes the CNC billet nitrous plate, a 12lb nitrous bottle, Lightning 250 nitrous solenoid, DF5 bottle valve, Lightning series fuel solenoid, stainless steel feed lines and bottle brackets, a heavy-duty relay, switches, and all necessary nuts, bolts, and electrical connectors for installation.

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Specifications

Brand: Nitrous Express
Part #: 55040-12
UPC: 653374501286

Nitrous Express 4150 Gasoline (RNC) Nitrous Kit w/12lb Bottle

Name: Nitrous Express 4150 Gasoline (RNC) Nitrous Kit w/12lb Bottle
Brand: Nitrous Express
SKU: nitrous-express-nitrous-express-4150-gasoline-rnc-nitrous-kit-w-12lb-bottle-t14-339847
Price: 2220.21 USD
Availability: BackOrder

$2220.21

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Nitrous Express 4150 Gasoline (RNC) Nitrous Kit w/12lb Bottle. Get maximum nitrous flow per jet size.

Key Features

Fits gasoline engines, designed for racers with jet size limitations.
CNC billet nitrous plate with enlarged passages for increased flow.
Includes a .250 orifice Lightning 250 nitrous solenoid and .500 orifice DF5 bottle valve.
Delivers a dense liquid nitrous charge for maximum flow through a specific jet size.
Comes with a 12lb nitrous bottle and stainless steel bottle brackets.
Kit includes a Lightning series fuel solenoid and stainless steel hard lines.

This is a universal nitrous system designed for gasoline engines. Always consult the manufacturer's installation manual for specific vehicle fitment and application details.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

If you're looking to push your gasoline engine's performance beyond its natural limits, this Nitrous Express RNC (Restricted Nitrous Class) system is built for serious power gains, especially when jet size is a key restriction. This kit is designed to maximize the amount of nitrous you can flow through a given jet, making it a popular choice for racers who need every bit of advantage. The system centers around a CNC billet nitrous plate that features enlarged passages, working in conjunction with a .250 orifice Lightning 250 nitrous solenoid and an 8AN feed line to deliver a dense liquid nitrous charge.

The .500 orifice DF5 bottle valve is also a key component, ensuring a strong and consistent flow from the 12lb bottle. This combination of well-chosen parts allows for impressive power increases that you have to experience to believe. Nitrous Express includes everything you need for a complete installation, from a Lightning series fuel solenoid and stainless steel hard lines to connect the solenoids to the plate, to a heavy-duty relay, switches, stainless bottle brackets, and all necessary nuts, bolts, and electrical connectors.

This kit is designed to provide the most power per jet size available in a conventional RNC system. Please note that this system is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper setup and safety guidelines.