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Injector Dynamics ID1300XDS Top-feed Conversion Fuel Injector Kit – 04-06 STI

Injector Dynamics ID1300XDS Top-feed Conversion Fuel Injector Kit – 04-06 STI


After many requests from Subaru owners, we came up with a solution for those stuck with a side feed injector and a severely lacking selection of fuel injectors. In the past, it was required to source the Tumble Generator Valves (TGV) from another Subaru application with top feed injectors and swap them and the fuel rails to convert to a top feed injector setup.

Not anymore, we’ve developed a new injector and rail combo that will allow you to fit any of the Injector Dynamics lineup into your side feed TGV’s with ease.

This injector kit is designed for 2004-2006 STI with sidefeed TGV’s to allow you to run top feed fuel injectors.

Pair this kit with the Injector Dynamics Side Feed Conversion Fuel Line Kit for Easy Install.


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This product may not be available for local pick-up. Contact us for more details.



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Conversion Kit

The rail and mounting spacers are CNC’d aluminum and are black anodized. 8mm stainless steel mounting hardware is included as well. Inlet and outlet threads on the rail are -6 AN female and seal with an oring leaving plenty of flexibility for plumbing options. The rail kit is only sold with Injector Dynamics injectors.


  • 4 Injectors
  • 4 Injector connectors
  • 2 Rails
  • 4 Spacers
  • 4 SS Allen Head Mounting

Injector Dynamics ID1300x

The ID1300x² is an all new injector, designed in partnership with Bosch Motorsport. This collaboration has given us the ability to design a high flow injector with characteristics specific to the needs of the motorsport tuner. The ID1300x² was designed with alternative fuels in mind, and was originally the only performance injector available with all stainless internals. It is compatible with all known fuels, and will stand up to the corrosive nature of alcohol better than any injector on the market.

While the ID1300x² was designed with an eye towards ethanol fueled engines, we have accounted for the occasional need to convert back to gasoline. The ID1300x² has a minimum fuel mass compatible with gasoline use, and will provide exceptional idle and cruise behavior under these conditions. In addition to its multi-fuel capabilities, the compact body of the ID1300x² allows fitment in 200+ applications, making it the most versatile injector in our lineup.

Quick Specs

  • Nominal Flow Rate – 1335cc/min @ 3.0 Bar (43.5 psi) Using Iso Octane at 52 Degrees C (125 Degrees F)
  • Maximum Differential Fuel Pressure –  7.0 Bar (101.5 psi)
  • Fuel Compatibility – Compatible With All Known Fuels – (Designed Specifically for Alternative Fuels)
  • Electrical Connector – USCAR
  • Plug and Play data from Injector Dynamics for Cobb Accesstuner
  • Flow matched Sets – superior idle and drivability characteristics
  • Terminal, Seals, and Connectors Included
  • Plug and Play Adapters sold separately


Additional Information

Weight 2.1 lbs
Dimensions 8.5 × 4.8 × 3 in


  • 2004-2006 Subaru STI


Plug and Play Data

Plug and Play Data for Accesstuner