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Consistent Fuel Delivery for Your B, D, or H Series Build
Tired factory injectors struggle to keep up once you start adding boost, bigger cams, or a more aggressive tune. The DWK18U-04-0450-4 set from DeatschWerks delivers a flow-matched 450cc solution for OBD I and OBD II B, D, and H series engines, giving your Integra or Civic the fuel supply it needs to make reliable power without hesitation or misfire under load.
Key Features
- 450cc/min flow rate at 3 bar base fuel pressure
- Set of 4 injectors flow matched and balanced within 1 to 2 percent
- Compatible with OBD I and OBD II B, D, and H series engines
- Plug and play fit using OEM style electrical connectors
- Compatible with gasoline, most oxygenated fuels, and E85 ethanol blends
- Includes a custom flow report detailing rate, latency, and impedance for accurate tuning
Fitment
| Year Range | Make | Model |
|---|---|---|
| 1991-2001 | Acura | Integra |
| 1992-2000 | Honda | Civic |
Specifications
| Detail | Value |
|---|---|
| Part Number | DWK18U-04-0450-4 |
| Flow Rate | 450cc/min at 3 bar |
| Quantity | 4 Injectors |
| Engine Compatibility | OBD I/II B, D, H Series |
| Fuel Compatibility | Gasoline, E85 |
| Warranty | 3 Year Limited |
| UPC | N/A |
What's Included
- 4 DeatschWerks 450cc Fuel Injectors
- Custom Flow Matching Report
- OEM Style Connector Compatibility
About DeatschWerks
DeatschWerks specializes in fuel system components engineered for both daily driven and high performance applications. Every injector set is flow tested and matched in house so tuners get consistent, repeatable results across cylinders.
FAQ
What is the DWK18U-04-0450-4?The DWK18U-04-0450-4 is a DeatschWerks set of four 450cc fuel injectors built for OBD I and OBD II B, D, and H series Honda and Acura engines.
Which vehicles does this injector set fit?This set fits 1991-2001 Acura Integra and 1992-2000 Honda Civic models equipped with a compatible B, D, or H series engine.
Will these injectors work with my factory ECU?These injectors are plug and play electrically, but a properly tuned ECU or aftermarket management system is recommended to take full advantage of the increased flow rate.
Are these injectors E85 compatible?Yes, this set is compatible with gasoline, most oxygenated fuels, and E85 ethanol blends.
Do the injectors come flow matched?Yes, each set is flow tested and balanced within 1 to 2 percent, with a custom report included for tuning reference.
Will installing aftermarket injectors void my factory warranty?Under the Magnuson-Moss Warranty Act, installing aftermarket fuel injectors does not void your vehicle's factory warranty for unrelated systems or components.
Do I need new fuel rail o-rings for installation?It is good practice to replace the injector o-rings during installation since the factory seals can harden over time and cause a vacuum or fuel leak.
What fuel pressure are these injectors rated for?These injectors are flow rated at 450cc/min using a 3 bar base fuel pressure reference.
Install Instructions
- Relieve fuel system pressure and disconnect the negative battery terminal
- Remove the factory fuel rail and disconnect the injector electrical connectors
- Remove the old injectors from the fuel rail and discard the worn o-rings
- Install new o-rings on the DWK18U-04-0450-4 injectors and seat them into the fuel rail
- Reinstall the fuel rail assembly and torque mounting bolts to factory spec
- Reconnect the injector electrical connectors and battery terminal
- Cycle the ignition to check for fuel leaks before starting the engine
- Update the ECU tune to match the new injector flow rate before driving
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