What horsepower gains can I expect with this kit?

This kit comes with jetting options that allow for horsepower increases of 40, 60, 80, or 100 HP. You can select the jetting that best suits your needs and engine's capabilities.

What components are included in this nitrous kit?

The kit includes exclusive 'MAINLINE' solenoids, braided stainless steel hoses, 'Piranha' nozzles, a fuel pump, relay, microswitch, arming switch, jetting for various HP levels, and a 2.5 lb nitrous bottle with a bracket.

Is this system compatible with fuel-injected engines?

No, this specific Nitrous Express kit is designed as a direct-port system for carbureted four-cylinder engines only. It is not intended for fuel-injected applications.

1 / 3

Specifications

Brand: Nitrous Express
Part #: 62028P
UPC: 653374975285

Nitrous Express 4 Cyl Mainline Nitrous Kit w/2.5lb Bottle

Name: Nitrous Express 4 Cyl Mainline Nitrous Kit w/2.5lb Bottle
Brand: Nitrous Express
SKU: nitrous-express-nitrous-express-4-cyl-mainline-nitrous-kit-w-2-5lb-bottle-t14-339975
Price: 1158.36 USD
Availability: BackOrder

$1158.36

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 4 Cyl Mainline Nitrous Kit w/2.5lb Bottle. Boost your 4-cylinder carbureted engine's power with this complete nitrous system.

Key Features

Direct-port nitrous system for carbureted four-cylinder engines.
Includes exclusive Nitrous Express 'MAINLINE' solenoids.
Features braided stainless steel hoses for reliable delivery.
Comes with 'Piranha' nozzles for efficient fuel and nitrous distribution.
Kit includes a fuel pump, relay, microswitch, and arming switch.
Jetting is provided for 40, 60, 80, and 100 horsepower increases.

This kit is designed for carbureted four-cylinder engines. Check manufacturer specifications for specific vehicle compatibility.

⚠️ 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

Secure CheckoutFast Shipping631-982-0042

About this part

Product Details

If you're looking to add a significant power boost to your carbureted four-cylinder engine, this Nitrous Express Mainline Nitrous Kit is designed to do just that. This system is built for direct-port injection, meaning it delivers nitrous oxide directly into each cylinder for a more consistent and effective power increase. It’s a comprehensive package that gives you everything you need to get started with nitrous oxide.

At the heart of this kit are Nitrous Express's exclusive 'MAINLINE' solenoids, known for their reliability and performance. You'll also find braided stainless steel hoses, which are strong and resist expansion under pressure, ensuring a secure delivery of the nitrous. The 'Piranha' nozzles are designed for efficient distribution into the intake ports. This kit comes with a fuel pump, a relay, a microswitch for safety, and an arming switch to control activation. It includes jetting options for 40, 60, 80, and 100 horsepower gains, allowing you to tune the power output to your liking. A 2.5 lb nitrous bottle and mounting bracket are also included to complete the system.

This kit is a substantial upgrade for performance-minded owners of carbureted four-cylinder engines. Remember that this system is not CARB approved and cannot be shipped to California. Always follow the manufacturer's installation and safety guidelines carefully when working with nitrous oxide systems.