Injector Dynamics ID1300-XDS Fuel Injectors | Set of 4 | Multiple Subaru Fitments (1300.48.11.WRX.4)

Big injectors do not have to mean a lumpy idle and ugly cold starts.

A factory fuel system that was sized for stock power runs out of injector long before a built engine runs out of airflow, and Multiple Subaru Fitments builds hit that wall early. The ID1300-XDS (the current evolution of the ID1300x) answers that with 1335cc/min of flow at 3.0 bar, compatibility with all known fuels, built for E85, delivered as a matched set of 4 for your Multiple Subaru Fitments. Each set is flow matched using Dual Slope Matching and backed by full characterization data, so your ECU gets real numbers, not estimates. It is the boring, repeatable fueling every serious build needs.

What You'll Feel

• Stock-like idle and clean cold starts, even at this injector size
• Fuel trims that stay put season to season instead of drifting with the weather
• Crisp part-throttle response instead of the surge and stumble big injectors are known for
• Headroom to grow the build without touching the fuel system again
• Confidence to run ethanol daily without worrying what it is doing to your injectors

Features

• Nominal flow rate: 1335cc/min at 3.0 bar (43.5 psi), measured with iso-octane at 52 degrees C
• Maximum differential fuel pressure: 7.0 bar (101.5 psi)
• Compatible with all known fuels and designed specifically for alternative fuels like E85
• USCAR electrical connector
• Configuration: 48mm body, 11mm adapter top, WRX 16B bottom adapter (Subaru side feed conversion)
• Supplied as a flow-matched set with Dual Slope Matching for consistent delivery at low pulse widths
• All stainless internals stand up to the corrosive nature of alcohol fuels

The Details

The ID1300-XDS was designed in partnership with Bosch Motorsport with alternative fuels in mind, and its stainless internals shrug off the corrosive side of alcohol better than anything else in this flow class. It was also built with the occasional switch back to gasoline in mind, with a minimum fuel mass low enough to idle and cruise cleanly on pump gas. Dual Slope Matching keeps cylinder-to-cylinder delivery consistent at the short pulse widths where high flow injectors usually fall apart. Every set ships flow matched, and Injector Dynamics publishes full characterization data, including slope, offset (dead time) versus voltage and pressure, and short pulse width behavior, so your tuner can load real numbers instead of chasing fuel trims across the map. Accurate dead times are what make large injectors behave at idle and cruise, and they are the reason these tune quickly and stay tuned. This configuration uses machined top adapters (already fitted) to suit the rail height listed above. The WRX 16B bottom adapters convert these top feed injectors to drop into the factory Subaru side feed location. If your harness does not have USCAR plugs, plug and play connector adapters are available separately, no cutting or soldering required.

Kit Includes

• 1 - set of ID1300-XDS Injectors

Applications

• 2002-2014 Subaru WRX
• 2007-2019 Subaru STI
• 2007-2011 Subaru Legacy GT
• 2007-2011 Subaru Forester XT