Air and Fuel› Nitrous Oxide Systems and Components

Nitrous Express

Nitrous Express - 4500 Assasin Plate, RNC Up to 750HP, 12LB Bottle - 67170-12

$2,912.49

SKU: N004 67170-12

In Stock
In Stock
Ships by Jun 18
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Nitrous Express Assassin plate system, MPN 67170-12, is a technically advanced single-stage nitrous plate with a CNC machined design. It integrates nitrous and fuel discharge ports into its outer perimeter, creating a unique spray pattern for perfect nitrous-fuel distribution and superior atomization. This system effectively resolves common distribution issues in single-plane manifolds, particularly for small and big block Fords, and is designed without traditional spray bars to prevent sagging or airflow obstruction.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandNitrous Express
Part NumberN004 67170-12

Videos

How to install nitrous oxide | Nitrous Express Mainline Budget System

How to install nitrous oxide | Nitrous Express Mainline Budget System
How to ELIMINATE Turbo Lag!! With the Nitrous Express InstaBoost System!

How to ELIMINATE Turbo Lag!! With the Nitrous Express InstaBoost System!
The Assassin Nitrous Express Plate System Review

The Assassin Nitrous Express Plate System Review
The Assassin Nitrous Plate System from Nitrous Express!

The Assassin Nitrous Plate System from Nitrous Express!
Nitrous Express Assassin Plate Overview

Nitrous Express Assassin Plate Overview
The 4150 Assassin Nitrous Express Plate Release!

The 4150 Assassin Nitrous Express Plate Release!

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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