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Nitrous Express 4150 Dual Stage Billet Crossbar Nitrous Kit (50-300 & 100-500HP) w/Composite Bottle

SKU: NEX66042-12

Nitrous Oxide Systems

NEX Nitrous Oxide Kits...

Nitrous Express 4150 Dual Stage Billet Crossbar Nitrous Kit (50-300 & 100-500HP) w/Composite Bottle

SKU: NEX66042-12

Nitrous Oxide Systems

NEX Nitrous Oxide Kits...

A$4,244.07
Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.

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Description

Nitrous Express 4150 Dual Stage Billet Crossbar Nitrous Kit (50-300 & 100-500HP) w/Composite Bottle

The new NX Billet Crossbar nitrous plate systems have just raised the bar in nitrous plate technology. The CNC machined design eliminates round spray bars resulting in excellent atomization and cylinder distribution. With no spray bars to sag, rotate or disrupt airflow, this is truly the Next Generation in cross bar nitrous plate technology. This system includes a 12lb composite nitrous bottle with the billet aluminum Lightning 45 bottle valve. This valve not only looks great; It is packed with features including two integrated gauge ports, 5/8 siphon tube, a large .325 orifice and an improved flow path with only one 45 degree turn. The Lightning 45 bottle valve looks great, flows great and weighs nearly one full pound less than our old style brass valve. This crossbar nitrous system includes more than the standard crossbar nitrous kit. It includes a custom solenoid bracket, billet aluminum y fittings, braided stainless solenoid to plate lines, nickel plated fittings, wide open throttle switch, master arming switch, 40 Amp relay and relay harness. This system is designed for 4150 flange manifolds and includes jetting for 50, 100, 150, 200, 250 & 300HP.

Additional Information

4150 DUAL STAGE BILLET CROSSBAR; (50-300/100-500HP) WITH COMPOSITE BOTTLE.


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 06:20:19

Data: v4.2 - Upd: 2026-11-08 16:34:09

Features

  • Weighs One Pound Less Than Old Style Brass Valve

Important Note Regarding Nitrous & Pressurised Systems

Orders containing nitrous systems or other pressurised canisters may require additional handling and inspection prior to dispatch.

Due to the nature of these products and applicable transport and state regulations, each system is individually inspected, released, and purged where required to ensure compliance with air and road freight standards. While most orders ship within our normal timeframes, this process may occasionally result in slightly longer dispatch times than those advertised.

We do everything we can to minimise delays, and the vast majority of shipments move through without issue. If you are working to a tight deadline or require urgent delivery, please contact us prior to placing your order so we can confirm the most suitable options.

We appreciate your understanding and patience - this process ensures safe, compliant transport and delivery of your order.

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Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Details

Add-On Part:15601, 11107, 16006, 18959, 16580
Bottle Capacity:12
Bottle Color:Carbon
Bottle Included:Yes
Description:Nitrous Oxide Injection System Kit
Hose Color:Stainless
Hose Material:Stainless Braided
Part Number:nex66042-12
Title:Nitrous 4150 DUAL STAGE BILLET CROSSBAR, (50-300 & 100-500HP) WITH COMPOSITE BOTTLE.
Type:4150 Flange
Usage:Street/Performance

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Nitrous Express, Nitrous Express (nx)
StreetFX SKU nex66042-12
SFX Item ID 4126424
Accounting SKU nex-66042-12
Manufacturer SKU 66042-12
Manufacturer UPC 653374309585
Alternative References 66042-12, NEX-66042-12

Nitrous Oxide System, Billet Crossbar, Wet Style, Square Bore Plate, Dual Stage, 12 lb. Bottle, Kit

Never be satisfied with the status quo! It is time for the next generation in crossbar nitrous plate technology. The CNC machined design eliminates round spray bars resulting in excellent atomization and cylinder distribution without rotation, sagging, or the disruption of airflow. These CNC-machined plates include a nitrous bottle with a custom solenoid. The Lightning Series solenoids feature CNC aluminum bodies with an integrated purge port, which allows for connecting a purge valve directly to the body of the nitrous solenoid, for less plumbing and clean looks. The kits also come with fittings, lines, switches, relays, and every nut, bolt, and electrical connector needed for installation.

Product Attributes
BrandNitrous Express (NX)
Manufacturer's Part Number66042-12
Part TypeNitrous Oxide Systems
Product LineNitrous Express Billet Crossbar Nitrous Plate Systems
UPC653374309585
Delivery StyleSquare bore plate
Nitrous System StyleWet
Nitrous System Intended Fuel TypeGasoline
Maximum Advertised Horsepower Increase800
ActivationMicroswitch
Jet Sizes Included (hp)50, 100, 150, 200, 250, 300, 400, 500
Bottle IncludedYes
Nitrous Bottle Capacity12 lbs.
Dual StageYes
Bottle MaterialComposite
Bottle ColorNatural
Bottle Brackets IncludedYes
Bottle Bracket MaterialStainless steel
QuantitySold as a kit.
NotesIncludes jetting for 50, 100, 150, 200, 250, and 300 hp on the first stage and 100, 200, 300, 400, and 500 hp on the second stage.

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