What horsepower levels can this kit achieve?

This Stage 6 system includes jetting for multiple horsepower increases, ranging from 50 HP up to 300 HP. You can select the appropriate jets to match your desired power output.

What components are included with the nitrous kit?

The kit includes the Gemini plate system, a composite nitrous bottle, Lightning solenoids, a heavy-duty 40-amp relay, stainless steel bottle brackets, an extra 4AN long supply line, and jetting for various horsepower levels.

Are there any restrictions on where this kit can be shipped?

Yes, this kit is not CARB approved and therefore cannot be shipped to California due to emissions regulations.

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Specifications

Brand: Nitrous Express
Part #: 60040-12
UPC: 653374304108

Nitrous Express 4150 Gemini Stage 6 Nitrous Kit (50-300HP) w/Composite Bottle

Name: Nitrous Express 4150 Gemini Stage 6 Nitrous Kit (50-300HP) w/Composite Bottle
Brand: Nitrous Express
SKU: nitrous-express-nitrous-express-4150-gemini-stage-6-nitrous-kit-50-300hp-w-compo-t14-339890
Price: 1802.84 USD
Availability: BackOrder

$1802.84

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 Gemini Stage 6 Nitrous Kit (50-300HP) w/Composite Bottle. Advanced direct-port design for perfect fuel distribution.

Key Features

Fits standard 4150 flange carburetors.
Direct-port pattern ensures perfect nitrous and fuel distribution.
Includes jetting for 50, 100, 150, 200, 250, and 300 horsepower increases.
Comes with a lightweight composite nitrous bottle.
Features Lightning solenoids with a limited lifetime warranty.
Includes a heavy-duty 40-amp relay and stainless steel bottle brackets.

This kit fits standard 4150 flange carburetors. It is not CARB approved and cannot be shipped to California.

⚠️ 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

The Nitrous Express 4150 Gemini Stage 6 Nitrous Kit uses a unique direct-port pattern, a design choice that ensures perfect nitrous and fuel distribution. This system is built to solve common issues found with single-plane manifolds, especially on Ford small and big block engines. It offers superior distribution and outstanding atomization, moving beyond traditional spray bar designs that can sag, split, or block airflow. This makes it a truly next-generation nitrous plate technology.

This Stage 6 system comes with jetting options for 50, 100, 150, 200, 250, and 300 horsepower increases, giving you flexibility to tune your engine's power output. It includes a lightweight composite nitrous bottle, Lightning solenoids with a limited lifetime warranty, a heavy-duty 40-amp relay, stainless steel bottle brackets, and an extra 4AN long supply line made with Race Hose. The improved flow path features only one 45-degree turn, minimizing restriction and maximizing efficiency. This kit is designed to fit standard 4150 flange carburetors.

When installing this system, remember it is not CARB approved and cannot be shipped to California. It's recommended to consult the manufacturer's installation instructions for specific details regarding setup and tuning to achieve the desired performance gains safely.