Perimeter Plate Conversion Kit - Dominator Flange

Convert any nitrous system being used on a Dominator flange application into a ZEX™ Perimeter Plate System.
In stock

*Please note that the above image shows a square flange / bolt pattern, instead of a Dominator flange / bolt pattern.

 Perimeter Plate Nitrous System

Update your obsolete spray-bar type nitrous system with one of our Perimeter Plate Conversion Kits. This cost effective and easy-to-install upgrade immediately delivers all the benefits of the ZEX™ Perimeter Plate Nitrous System without having to purchase an entirely new nitrous kit. Perimeter injection results in more even distribution of fuel and nitrous for maximum power and engine safety. The conversion kit includes the square flange perimeter plate, gaskets and jet conversion chart.


  • Fits Dominator flange intake manifolds

  • Includes plate, gaskets, fittings, & a nitrous / fuel jetting chart

  • Nitrous & fuel are injected via outlets placed at 12 points around intake plenum

Patented, Revolutionary
Perimeter Plate Technology:

Cryo-Sync™ Technology

The ZEX™ Perimeter Plate routes the nitrous through a set of internal passages before spraying it into your engine. During this circulation process, the nitrous temperature drops to -127 degrees below zero! This cryogenic phenomenon effectively turns the plate into an ultra-efficient Cryo-Sync™, cooling your carburetor and intake manifold for additional power.

Airflow Enhancement™ Technology

The ZEX™ Perimeter Plate has been designed to inject the nitrous at an optimized angle, toward the center of the intake plenum. In addition to ensuring proper cylinder distribution, this ZEX™- developed technology creates a pocket of intense low pressure just below the carburetor while the nitrous is being sprayed. This low-pressure area enhances airflow into your engine, which further improves power gains.

Perimeter Injection™ Technology

Unlike traditional nitrous kits, the ZEX™ Perimeter Plate employs multiple injection points to create a perfectly atomized blend of fuel and nitrous. This mixture is then fired directly into the center of the intake plenum, ensuring equal dispersal between cylinders. By optimizing cylinder-to cylinder distribution, ZEX™ Perimeter Injection™ Technology generates maximum power without sacrificing engine safety.