Injector Dynamics - ID1050x XDS Fuel Injectors - Honda Civic Si 2012–2015 - 1050.07.21.48.14.4

The Injector Dynamics ID1050x XDS Fuel Injectors (Part #1050.07.21.48.14.4) are a direct-fit, motorsport-grade fueling upgrade designed specifically for the 2012–2015 Honda Civic Si. As the evolution of the proven ID1000, the ID1050x represents the latest advancement in Injector Dynamics’ X-Series, developed in partnership with Bosch Motorsport and refined using engineering lessons from the ID1300x and ID1700x programs.

Unlike modified production injectors, the ID1050x is built to spec from the ground up, delivering excellent idle quality, precise low-pulse control, and the fueling capacity required for high-output naturally aspirated or boosted K-series builds. With corrosion-resistant internals, compatibility with all known fuels, and stable operation up to 10 bar fuel pressure, these injectors offer long-term reliability for street and track applications.

This kit includes the correct 14mm (grey) adapter tops and Denso-style lower seals that install over the factory O-ring retainer—no modifications required.

Key Features

• 1065cc/min nominal flow rate @ 3.0 bar (43.5 psi)

• Purpose-built motorsport injector (not modified OEM)

• X-Series (XDS) design with improved internal flow path (+5% output)

• Excellent idle and part-throttle control

• Corrosion-resistant internals compatible with all known fuels

• Stable operation up to 10 bar (145 psi)

• Compact short-body design

• Stronger magnetic circuit for consistent high-pressure performance

• Replaceable inlet filter for extended service life

• USCAR electrical connector

Technical Specifications

• Nominal Flow Rate: 1065cc/min @ 3.0 bar (43.5 psi)

• Maximum Differential Fuel Pressure: 10.0 bar (145 psi)

• Fuel Compatibility: All known fuels (including ethanol blends)

• Electrical Connector: USCAR

Fitment

• Honda Civic Si: 2012–2015

  • 14mm (grey) adapter tops included

  • Denso lower seals install over OE O-ring retainer

  • Do not remove factory retainer

  • Set of 4 injectors

What’s Included

• (4) Injector Dynamics ID1050x XDS Fuel Injectors

• 14mm grey adapter tops

• Denso-style lower seals

Part Number

• 1050.07.21.48.14.4