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Nitrous Express Chrysler/Dodge 5.7L/6.1/L6.4L Hemi Direct Port Plate System w/12lb Bottle

SKU: NEX20958-12

Nitrous Oxide Systems

NEX Nitrous Oxide Kits...

Nitrous Express Chrysler/Dodge 5.7L/6.1/L6.4L Hemi Direct Port Plate System w/12lb Bottle

SKU: NEX20958-12

Nitrous Oxide Systems

NEX Nitrous Oxide Kits...

A$4,436.96
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 Chrysler/Dodge 5.7L/6.1/L6.4L Hemi Direct Port Plate System w/12lb Bottle

The Nitrous Express direct port nitrous plates are designed to fit factory modern Hemi Engines. This setup is capable of spraying anywhere from 100-400 horsepower. Direct port plates offer an advantage compared to a single nozzle or a throttle body plate, giving you the best distribution possible by feeding an equal amount of nitrous and fuel to each cylinder.The plates bolt under the intake manifold making installation quick and simple. The plates come in at 5/8" thick so there will be no need to run an aftermarket hood. Made entirely of billet aluminum, anodized in black, and as always proudly made in the USAThis system includes:Direct port Hemi nitrous plates with stainless fittingsTPS Auto learn switch so the nitrous only activates at wide-open throttle and automatically turns off when you let your foot off the accelerator.Jetting for 100-400HPStainless braided N2O and fuel lineMaster arming switchRelay and relay harnessFuel rail adapter12Lb bottle with the billet aluminum Lightning 500 bottle valve and stainless bottle bracketsAll necessary hardware to complete the installation.

Additional Information

Direct Port Plate System For 5.7;6.1 and 6.4 Hemi W/12Lb Bottle

Part Type

Nitrous Oxide Injection System Kit

Product Overview

The Nitrous Express direct port nitrous plates are designed to fit factory modern Hemi Engines. This setup is capable of spraying anywhere from 100-400 horsepower. Direct port plates offer an advantage compared to a single nozzle or a throttle body plate, giving you the best distribution possible by feeding an equal amount of nitrous and fuel to each cylinder. The plates bolt under the intake manifold making installation quick and simple. The plates come in at 5/8" thick so there will be no need to run an aftermarket hood. Made entirely of billet aluminum, anodized in black, and as always proudly made in the USA,, This system includes: Direct port Hemi nitrous plates with stainless fittings, TPS Auto learn switch so the nitrous only activates at wide-open throttle and automatically turns off when you let your foot off the accelerator. Jetting for 100-400HP, Stainless braided N2O and fuel line, Master arming switch, Relay and relay harness, Fuel rail adapter, 12Lb bottle with the billet aluminum Lightning 500 bottle valve and stainless bottle brackets, All necessary hardware to complete the installation.

Additional Application Notes
• Incl. 12 lb. Bottle

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 06:20:58

Data: v4.2 - Upd: 2026-11-08 16:33:10

Features

  • Direct Port Plate System

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.

(keyword: nitrous express)

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

Bottle Included:Yes
Description:Nitrous System
Part Number:nex20958-12
Title:Nitrous Express Plate System

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Nitrous Express, Nitrous Express (nx)
StreetFX SKU nex20958-12
SFX Item ID 4126993
Accounting SKU nex-20958-12
Manufacturer SKU 20958-12
Manufacturer UPC 653374981903
Alternative References 20958-12, NEX-20958-12

Nitrous Oxide System, Direct Port Plate System, 5.7, 6.1, 6.4 Hemi, 100-400 HP, 12 lb Carbon Bottle, Kit

Nitrous Express offers a complete line of conversion kits for all of their systems, including these Hemi plate conversion kits. They're designed to fit Hemi throttle bodies, including Challenger, Chrysler 300 Dodge Rams and Chargers with the 5.7L-6.4L Hemi engines. The plate bolts between the throttle body and intake, making installation quick, easy, and attractive. These kits include the aluminum conversion plate, longer throttle body bolts, braided stainless nitrous and fuel lines, as well as jetting for 50, 100, 150, 200, 250, 300, 350, and 400 hp.

The system includes:
• Jetting for 50-400 hp
• 24 in. S.H.O. nitrous line
• Rubber O-ring gasket
• Dual stage capable throttle body nitrous plate

(Plate is pre-machined with a second set of nitrous and fuel passages, so you can easily upgrade to a dual stage system by adding part number NX933D.)

Product Attributes
BrandNitrous Express (NX)
Manufacturer's Part Number20958-12
Part TypeNitrous Oxide Systems
Product LineNitrous Express Hemi Plate Conversion Kits
UPC653374981903
Delivery StyleDirect port/Intake manifold
Nitrous System StyleWet
Nitrous System Intended Fuel TypeGasoline
Maximum Advertised Horsepower Increase400
ActivationTPS
Jet Sizes Included (HP)100, 200, 300, 400
Bottle IncludedYes
Nitrous Bottle Capacity12 lbs.
Dual StageNo
Bottle MaterialCarbon fiber
Bottle ColorBlack
Bottle Brackets IncludedYes
Bottle Bracket MaterialAluminum
QuantitySold as a kit.

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