What is the advantage of a direct port nitrous system over other types?

A direct port system feeds nitrous and fuel directly to each cylinder's intake port. This offers the best possible distribution, ensuring each cylinder receives an equal amount for more consistent power and better engine reliability compared to single nozzle or throttle body systems.

What horsepower range can this system support?

This Nitrous Express system comes with jetting that allows you to tune it for anywhere between 100 and 400 horsepower. You can select the jetting that best suits your performance goals and engine's capabilities.

Does this kit include everything needed for installation?

The NX958 kit includes the direct port Hemi nitrous plates with stainless fittings, jetting for 100-400HP, and stainless braided N2O and fuel lines. It is designed for a straightforward bolt-on installation under the intake manifold.

1 / 2

Specifications

Brand: Nitrous Express
Part #: NX958
UPC: 653374981927

Nitrous Express EFI Nitrous Plate Conversion Hemi 5.7L/6.1L/6.4L

Name: Nitrous Express EFI Nitrous Plate Conversion Hemi 5.7L/6.1L/6.4L
Brand: Nitrous Express
SKU: nitrous-express-nitrous-express-efi-nitrous-plate-conversion-hemi-5-7l-6-1l-6-4l-t14-482009
Price: 977.24 USD
Availability: BackOrder

$977.24

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 Hemi 5.7L/6.1L/6.4L direct port nitrous plate conversion system. Offers best distribution by feeding each cylinder equally.

Key Features

Fits 2008-2022 Dodge Challenger, 2006-2022 Dodge Charger, 2005-2022 Jeep Grand Cherokee, and many other modern Hemi vehicles.
Direct port nitrous plate design feeds each cylinder equally for optimal distribution and power.
Capable of spraying 100 to 400 horsepower, adjustable with included jetting.
Constructed from 5/8-inch thick billet aluminum for durability and proper fitment.
Black anodized finish for a clean, stealthy appearance.
Bolts under the intake manifold for a quick and simple installation.

⚠️ 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

Will this fit your vehicle?

About this part

Product Details

Starting with a 5/8-inch thick billet aluminum plate, this Nitrous Express direct port system is built to integrate seamlessly with factory modern Hemi engines. It’s designed to bolt directly under the intake manifold, making installation straightforward without requiring aftermarket hood clearance. This setup is capable of adding anywhere from 100 to 400 horsepower, giving you a significant boost when you need it.

Unlike single nozzle or throttle body plates, this direct port design ensures that each cylinder receives an equal and precise amount of nitrous and fuel. This balanced distribution is key to maximizing power gains and maintaining engine health under boost. The plates are precision machined from billet aluminum, anodized in black for a clean look, and proudly manufactured in the USA. This system is designed to fit a wide range of Hemi-equipped vehicles, including popular models like the Dodge Challenger, Charger, and Jeep Grand Cherokee.

Included with the NX958 kit are the direct port Hemi nitrous plates with stainless steel fittings, jetting for 100-400 horsepower applications, and stainless braided nitrous and fuel lines. This comprehensive package provides everything needed to get your Hemi engine breathing more powerfully.