Air and Fuel› Nitrous Oxide Systems and Components

Zex

Blackout Edition EFI V8 Wet Nitrous Oxide System

$829.95

SKU: 243-820371

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$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
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Overview

The Zex 243-820371 is a wet nitrous oxide system designed for EFI V8 engines. It features Fuel Shear Technology for even fuel atomization and Active Fuel Control to adjust fuel enrichment based on bottle pressure. The system is tunable for 100-250 horsepower gains.

This Blackout Edition includes black powder-coated bottles, carbon-fiber-look hoses, and fittings for a striking appearance in street/strip or drag racing applications. It utilizes a patented electronic TPS switch for activation at wide-open throttle.
Show original supplier description
The Zex 243-820371 Blackout Race EFI Wet Nitrous System is engineered for serious performance applications, offering a significant horsepower boost for EFI V8 engines. This system employs Zex's advanced Fuel Shear Technology, which injects enrichment fuel directly into the center of the nitrous plume to achieve total and even fuel atomization, ensuring optimal combustion. Tunable from 100 to 250 horsepower, this race kit incorporates other key Zex technologies. Active Fuel Control dynamically adjusts fuel enrichment to compensate for fluctuations in bottle pressure, ensuring consistent power delivery. The patented ZEX electronic TPS switch provides reliable activation precisely at wide-open throttle, maximizing performance gains when you need them most. This Blackout Edition stands out with its sleek aesthetics, featuring black powder-coated bottles and carbon-fiber-look hoses and fittings. The system operates optimally within a bottle pressure range of 900-1000 psi, and Zex emphasizes that exceeding this range will not improve performance and may even be detrimental.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandZex
Part Number243-820371
CategoryAir and Fuel
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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