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Injector Dynamics ID1050XDS Top-feed Conversion Fuel Injector Kit – 04-06 STI

Injector Dynamics ID1050XDS 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.


In stock

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



Authorized Dealer


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 1050x

The Injector Dynamics 1050x are one of JM’s favorite injectors. These injectors are perfect for stock turbo on E85 all the way to a 20g on E85. No sacrifice in idle or drivability with Injector Dynamics flow rate variance of 1% on each set of injectors.

The ID1050x is the evolution of the ID1000, and the latest addition to the X-Series. It is the most recent offering from the partnership of Injector Dynamics and Bosch Motorsport, and is the result of lessons learned during development of the ID1300x, and ID1700x. Like the ID1300x and ID1700x, the ID1050x is not a modified production component. It is a built to spec motorsport injector, offering optimization of critical operating parameters important to you, the motorsport tuner. Compared to the original ID1000, the ID1050x offers numerous improvements, and is sure to become the new reference.

Quick Specs

  • Nominal Flow Rate – 1065cc/min @ 3.0 Bar (43.5 psi) Using Gasoline at 52 Degrees C (125 Degrees F)
  • Maximum Differential Fuel Pressure – 10.0 Bar (145.0 psi)
  • Fuel Compatibility – Compatible With All Known 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

JMA Tips

  • Pairs well with 255lph fuel pumps
  • Supports 400+ HP on Ethanol


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