DeatschWerks DeatschWerks Performance Fuel Injector Set - 440cc 18U-09-0440-4

DeatschWerks Performance Fuel Injector Set - 440cc

For tuners and engine builders, the DeatschWerks 18U-09-0440-4 represents a highly predictable and well-characterized fueling solution.
DeatschWerks DeatschWerks
T#: 6151331 | Part#: 18U-09-0440-4
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Custom Applications - Will require additional tuning or modifications.
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323.10
SALE: $323.10 (10% OFF)
WAS: $359.00 on 07-02-2026

This product was last offered at the strikethrough price on
07-02-2026

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DeatschWerks Performance Fuel Injector Set - 440cc
$323.10

For tuners and engine builders, the DeatschWerks 18U-09-0440-4 represents a highly predictable and well-characterized fueling solution. Built using high-quality Bosch EV14 cores, these injectors are tested via SAE J1832 standards to provide accurate offset and slope data. This level of technical transparency allows for a faster "dial-in" period during the tuning process, resulting in improved cold starts and part-throttle driveability. The 440cc flow rate is ideal for naturally aspirated builds seeking more overhead or low-to-moderate boost applications where fuel control at low pulse widths is critical.

Key Features

  • Matched Set Precision: Every injector is flow-balanced in-house to ensure uniform fuel delivery across all four cylinders.

  • Tuning Ready: Full characterization data is available in Excel format for easy copy-pasting into most major ECU software.

  • OEM Integrity: Built using high-quality OEM cores to maintain factory-level reliability and long-term durability.

  • Lifetime Support: Backed by DeatschWerks' industry-leading technical support and a 3-year warranty.

  • Fuel Versatility: Rated for use with pump gas, race gas, and E85.

Specifications

  • Flow Rate (Mass): 42 lbs/hr

  • Flow Rate (Volume): 440 cc/min

  • Coil Resistance: 12.0 Ohms

  • Spray Pattern: Multi-hole / Wide Cone

  • O-Ring Material: Viton (Fluorocarbon)

  • Operating Pressure: 30–100 psi

  • Test Fluid: Calibration fluid (N-Heptane)

Not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board.


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MAKE MODEL SUBMODEL ENGINE Special Fitment Notes
BMW E30 M3 S14 2.3L Use vehicle selector to confirm fitment
*The above product applications have been written by Turner Motorsport. All warranties, product application, fitment, and performance are the responsibility of Turner Motorsport. For additional information see the terms of use.