Description
Product Overview
The Nitrous Express 15743 electro‑magnet orifice is engineered for automotive fuel‑injector systems that demand precise airflow control. Constructed from high‑grade plastic, the unit resists corrosion and heat while maintaining dimensional stability. It features two interchangeable openings, .093 and .125 inches, allowing fine‑tuning of fuel delivery for a range of engine configurations. Package dimensions are compact at 6.5 x 2.76 x 2.52 inches and the unit weighs just 181 grams, making storage and handling effortless. Certified by the manufacturer with a standard warranty, this component meets the rigorous standards expected by performance‑focused drivers.
Usage
Designed for unisex‑adult users, the orifice is suitable for both street‑legal daily drivers and track‑day enthusiasts. Install it in any compatible fuel injector to improve throttle response, reduce lag, and achieve a smoother power curve. Ideal for performance upgrades, racing applications, or simply maintaining factory specifications after wear. 
Why Choose Us
Nitrous Express has a reputation for delivering reliable, high‑performance automotive parts. This electro‑magnet orifice benefits from rigorous quality control, ensuring each unit meets exact tolerances. The plastic material offers a lightweight yet robust solution, reducing the risk of metal fatigue. Backed by a warranty and supported by a dedicated customer service team, you can trust the durability and consistency of this component.
Key Features
- Two precise orifice sizes (.093 and .125) for customizable airflow.
- High‑quality plastic construction resists corrosion and heat.
- Compact dimensions and lightweight design for easy installation.
- Compatible with a wide range of fuel injectors in performance applications.
- Manufacturer warranty ensures long‑term reliability.
FAQ
What engines are compatible with this orifice?
The Nitrous Express 15743 orifice fits most gasoline engines that use standard fuel injectors, especially those tuned for performance or aftermarket upgrades.
How do I choose between the .093 and .125 sizes?
The .093 size provides a tighter airflow for smaller displacement or high‑compression setups, while the .125 size allows greater flow for larger engines or forced‑induction applications.
Is any special tool required for installation?
Installation can be performed with basic hand tools such as a torque wrench and injector removal kit; no specialized equipment is necessary.
Can this orifice be used in diesel engines?
It is designed for gasoline fuel‑injector systems; using it in diesel applications is not recommended due to differing fuel pressures and flow characteristics.
What warranty does Nitrous Express provide?
The product comes with a standard manufacturer warranty covering defects in material and workmanship for a specified period from the date of purchase.




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