Civic Si 12-15 | ID1050x | Injector Dynamics | 1050.07.21.48.14.4-0

Civic Si 12-15 | ID2600-XDS | Injector Dynamics | 2600.07.21.48.14.4

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ID2600-XDS, for 12-15 Civic Si / K-series. 14mm (grey) adapter top. Denso lower OVER the o-ring retainer. Do not remove retainer. Set of 4.

The ID2600-XDS is the most recent offering from the partnership of Injector Dynamics and Bosch Motorsport.

The ID2600-XDS was developed specifically for use with liquid fuels, featuring corrosion resistant internals, and long term compatibility with ethanol and methanol.

The ID2600-XDS has the highest flow rate of any injector offered by Bosch, and flows 50% more than the ID1700x.

The ID2600-XDS benefits from Dual Slope Matching, a method of matching the flow rate in both the linear, and nonlinear operating range, providing better cylinder to cylinder consistency at low pulse widths.

Basic Specifications

Nominal Flow Rate – 2600cc/min @ 3.0 Bar (43.5 psi)
Maximum Differential Fuel Pressure – 9.0 Bar (130.5 psi) – Requires Minimum 11volt.
Fuel Compatibility – Compatible with Methanol/Ethanol/All Known Hydrocarbons. NOT Compatible with Ethers (MTBE, ETBE, TAME) or Nitro Methane
Electrical Connector – USCAR

Details

What is Dual Slope Matching?

Dual Slope Matching is a method of matching injectors that provides the best possible cylinder to cylinder fueling across the entire operating range.

Traditionally, injectors were matched based on static flow rate alone, which resulted in large deviations at low pulse widths.

Injector Dynamics introduced Slope Intercept Matching over a decade ago, which provided even cylinder to cylinder fueling across the linear operating range of the injector.

With the progression of turbo technology, and increased use of alcohol fuels, greater demands are placed on fuel injectors, and they are often required to deliver fuel well outside of their linear operating range.

The concept of Dual Slope Matching extends the injector matching into the lower non linear operating range. Dual Slope Matching was conceived by Aaron Looft of Injector Dynamics, who was inspired by the dual slope injector characterization model used by Ford.

For additional information about Dual Slope Matching please click HERE

Frequently Asked Questions About the Civic Si 12-15 ID2600-XDS Injectors

Will the ID2600-XDS support a high-RPM, flex-fuel (E85/petrol) tuned K24Z7 without sacrificing drivability?

Yes. The ID2600-XDS has the flow capacity for high-RPM K24Z7 builds running full E85 or flex-fuel blends while still retaining excellent street manners. Its linear behavior and tight injector matching ensure consistent fueling from idle to redline, even on aggressive naturally aspirated or boosted setups.

Is the 48mm injector body a direct physical fit for the 2012–2015 Civic Si intake manifold and fuel rail?

Yes. The injectors match the factory 48mm body length and include the correct upper and lower O-rings. They fit directly beneath the OEM or aftermarket fuel rail—no spacers, adapters, or manifold modifications required.

Where can my tuner get the official calibration and characterization data for the ID2600-XDS?

Injector Dynamics publishes full injector characterization data on their support site, including deadtimes, short pulse width tables, and full flow data. This allows seamless integration with tuning platforms like Hondata FlashPro, Motec, AEM, Haltech, and others.

Does the 2012–2015 Civic Si use the same USCAR electrical connector as the ID2600-XDS?

Yes. The factory harness uses a USCAR/EV6 connector, which is the native plug for the ID2600-XDS. Electrical adapters are not necessary for installation.

How does the ID2600-XDS maintain stable idle quality on the K24Z7, especially when tuned for large cams or E85?

Thanks to Dual Slope Matching, the ID2600-XDS maintains precise fuel control even at extremely low pulse widths. This prevents unstable fueling, rough idle, or stumble—common problems with large, poorly matched injectors—resulting in smooth factory-like idle performance.