LS Series Perimeter Plate Conversion Kit

Available Soon

 GM LS Perimeter Plate Conversion Kit

Typical spray bar nitrous plates are built on 30 year old technology and suffer from design compromises that can result in less than optimal performance and reliability. But ZEX™ has created three advanced nitrous technologies, each of which gives the user significant power advantages over conventional plate systems.

Update your obsolete spray-bar type nitrous system with one of our LS Perimeter Plate Conversion Kits. This cost effective and easy-to-install alternative immediately delivers all the benefits of the ZEX™ Perimeter Plate Nitrous System without having to purchase an entirely new nitrous kit. The conversion kit includes the perimeter plate, fitted gaskets and jet conversion chart.


    • Included adapter allows fitment to all 90mm & larger, OEM & aftermarket 4-bolt throttle bodies/manifolds

    • Improved perimeter injection results in even distribution of fuel & nitrous for max power & safety

    • Creates a low pressure point in the intake plenum for increased engine airflow

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.