What is a 'dry' nitrous system?

A dry nitrous system injects only nitrous oxide into the intake manifold. Fuel is supplied by the vehicle's existing fuel system, which must be upgraded to handle the increased demand. This system relies on the engine's fuel injectors to deliver the correct amount of fuel.

What is 'direct port' injection?

Direct port injection means a separate nitrous nozzle is installed for each cylinder. This allows for the most accurate and even distribution of nitrous oxide across all cylinders, leading to more consistent power delivery and better engine safety compared to a single-point system.

What else do I need to complete this nitrous system installation?

This kit does not include a nitrous bottle or regulator. You will need to source these separately, along with ensuring your fuel system is adequately upgraded to support the nitrous oxide being introduced.

Specifications

Brand: Nitrous Express
Part #: 20963-00
UPC: 653374984737

Nitrous Express Holley Hi-Ram Dry Direct Port Plate Nitrous System w/o Bottle

Name: Nitrous Express Holley Hi-Ram Dry Direct Port Plate Nitrous System w/o Bottle
Brand: Nitrous Express
SKU: nitrous-express-nitrous-express-holley-hi-ram-dry-direct-port-plate-nitrous-syst-t14-719901
Price: 1554.92 USD
Availability: BackOrder

$1554.92

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Nitrous Express 20963-00 Holley Hi-Ram Dry Direct Port Plate Nitrous System. Direct port injection for accurate distribution.

Key Features

Fits Holley Hi-Ram intake manifolds with a direct-fit plenum plate.
Direct port injection system accurately distributes nitrous oxide above each cylinder.
Includes billet aluminum and carbon fiber Lightning Series Solenoids.
Features stainless steel braided lines for durability and leak prevention.
Comes complete with all necessary wiring, switches, and hardware for installation.
Not CARB approved; cannot ship 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

This Nitrous Express system uses a plenum plate that bolts directly between the upper and lower sections of your Holley Hi-Ram intake manifold. This design makes for a really clean and straightforward installation. The direct port setup is the key here; it injects nitrous right above each cylinder from the side of the runner. This means you get the most precise fuel and nitrous distribution possible, which is crucial for making consistent power without any cylinders getting left out.

You'll find that the system is well-equipped with billet aluminum and carbon fiber Lightning Series Solenoids, which are known for their reliability. It also includes stainless steel braided lines, all the necessary wiring, switches, and every single nut, bolt, and connector you'll need to get it installed. This attention to detail in what's included means you won't be scrambling for extra parts during the install. The direct port injection ensures that each cylinder receives an accurate charge, maximizing your power gains and keeping your engine running smoothly under load.

Keep in mind that this system is not CARB approved and cannot be shipped to California. It's designed for enthusiasts looking for precise nitrous delivery and significant power improvements when paired with a Holley Hi-Ram intake. Ensure you have a suitable bottle and regulator to complete the system.