DeatschWerks 18U-05-0800-4 800cc Fuel Injectors for 1990-2005 Mazda Miata NA/NB

Vehicle Fitment

• 1990-1997 Mazda Miata (NA)
• 1998-2005 Mazda Miata (NB)

Fitment Notes

• Engineered as a drop-in fit for the factory OE harness, fuel rail, and intake manifold

Features

• Flow-matched and balanced in-house to within 1-2% for reliable performance
• Fully compatible with gasoline and ethanol blends up to E85
• Excellent spray pattern and atomization for optimized idle and tuning
• Direct drop-in fit for the OE harness, fuel rail, and manifold
• Characterized in-house via SAE J1832 standards for accurate data
• Custom flow report and tuning data included with every set
• Reduces install and tuning time compared to universal-fit injectors
• Backed by DeatschWerks' Limited Lifetime Warranty

Specifications

• Connector Shape: USCAR
• Flow Rate: 800 cc/min
• Number of Injectors: 4
• Fuel Compatibility: Gasoline and E85 ethanol blends

Included Components

• 4x 800cc Fuel Injectors
• 1x Custom Flow Report

Product Description

The DeatschWerks 18U-05-0800-4 injector set gives NA/NB Miata owners a reliable step up in fuel delivery for modified, higher-power builds. Each injector is flow-matched and balanced to within 1-2%, so you get consistent delivery across all four cylinders instead of guessing at inconsistent aftermarket parts.

Designed as a true drop-in fit for your factory harness, fuel rail, and intake manifold, these injectors cut down on install time and tuning headaches. They're fully compatible with gasoline and E85 blends, and each set ships with a custom flow report and tuning data to make dialing in your ECU straightforward. Backed by DeatschWerks' Limited Lifetime Warranty, they're built to be a long-term fuel system upgrade rather than a stopgap part.