STi 04-06 / Turbo | ID1700 | Injector Dynamics | 1700.18.01.48.14.4-0

STi 04-06 / Turbo | ID1750-XDS | Injector Dynamics | 1750.18.01.48.14.4

Details
Options

ID1750-XDS, for STi 04-06 / Turbo. Top-feed Conversion Kit. Dual Billet Fuel Rails. Set of 4 injectors. Two 2×8 lower o-rings.

The Best Just Got Better!

The ID1750 is the successor to the ID1700, featuring numerous improvements.
Compared to the 1700, the 1750 offers:

Higher Dynamic Flow Rate With no Increase in Minimum Fuel Mass.
Better Cylinder to Cylinder Balance at Low Pulsewidths.
Improved Pressure Sensitivity.

All while retaining the same “Compatible with everything but dirt” corrosion resistance that made the ID1700 famous.

Nominal Flow Rate – 1728cc/min @ 3.0 Bar (43.5 psi), Using E10 Emissions Certification Fuel at 49 Degrees C (120F)
Maximum Differential Fuel Pressure – 7.0 Bar (101.5 psi)
Fuel Compatibility – Compatible with Methanol/Ethanol/MTBE/Nitromethane/All Known Hydrocarbon Fuels.
Electrical Connector – USCAR

Details

Frequently Asked Questions About the STi 04-06 Turbo ID1750-XDS Injectors

Why are ID1750-XDS injectors the best choice for a high-power 04-06 STi?

The ID1750-XDS provides the massive 1750cc flow rate required for highly modified EJ257 engines, essential for large turbochargers and high boost. They offer superior precision and linearity, crucial for maximizing performance and achieving a safe, stable tune.

Is the ID1750-XDS (1750.18.01.48.14.4) a direct fit for the 04-06 Subaru STi?

Yes, this specific Injector Dynamics part number is configured as a direct drop-in replacement for the 04-06 STi. It features the correct overall length and electrical connector to fit the factory or aftermarket fuel rail without modification.

What critical fuel system upgrades are mandatory with these 1750cc injectors?

Due to the extremely high flow rate, installing the ID1750-XDS mandates a high-output fuel pump and typically an adjustable fuel pressure regulator. These components are necessary to reliably maintain fuel pressure under heavy load.

What makes the ID1750-XDS durable for use with E85 fuel in the STi?

The injectors are built with robust stainless steel internals, providing superior corrosion resistance. This design ensures long-term reliability for STi owners running high-alcohol content performance fuels like E85.

How does flow matching of the ID1750-XDS benefit my turbocharged EJ257?

Every set of Injector Dynamics injectors is individually flow-matched to ensure perfect cylinder-to-cylinder consistency. This highly accurate data allows your tuner to create a stable, efficient, and higher-performing tune.