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High Flow Direct Injection Fuel Injector Upgrade Focus RS/ST

High Flow Direct Injection Fuel Injector Upgrade Focus RS/ST


Regular price $1,199.00
Regular price $1,199.00 Sale price $1,199.00
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After 2 years of testing and development, we are now pleased to announce the availability of upgraded high-flow fuel injectors for the 2.3L and 2.0L EcoBoost. Xtreme-DI along with the Mountune Engineering team has logged hundreds of hours of testing on engine and chassis dynos and thousands of miles of test cycles to ensure durability resulting in a reliable injector upgrade for the 2.3L EcoBoost with a 50% increase in flow rate. These components power the fastest and most powerful Focus RSs in the world.

These injectors are only compatible with an upgraded high-pressure fuel pump.

For more information on Upgraded High-Pressure Fuel Pump 2.0L Ecoboost (Focus ST) Click Here.

For more information on Upgraded High-Pressure Fuel Pump 2.3L Ecoboost (Focus RS) Click Here.

For more information on a complete High Flow Direct Injection Fuel System Upgrade Click Here.

This upgrade does not include tuning / ECU calibration. You will need a Cobb Accessport or Syvecs ECU and access to a competent tuner/ engine calibration specialist for this hardware to function correctly.


Xtreme-DI XDI-i010-50 +50% DI Fuel Injector set

Performance Targets: Supports 525+ hp on E85, 650+ hp on gasoline* (*assuming sufficient octane)

  • OEM-like idle and drivability

  • Supported by all popular tuning platforms (COBB, Syvecs, SCT, etc.)

  • Compatible with gasoline and ethanol-based fuels

  • Direct fit installation: no messy hoses or wires under the hood

  • No external controller or splicing into wiring: full OEM control, diagnostics, an reliability

Fuel Injector Technical Data:

  • 50% more flow than OEM

  • OEM 122lb/hr @ 100bar

  • 23g/sec at 100bar, 32.4g/sec at 200bar

  • 2000cc/min at 100bar, 2880cc/min at 200bar

  • 179lb/hr at 100bar, 253lb/hr at 200bar

  • Stable at 200bar even with OEM driver settings, completely linear flow

Quality Control:

  • Every injector flow tested on XDI proprietary DI test bench at
  • 0.8msec/20bar for idle stability
  • 10msec/100bar for static flow reference
  • 6msec/200bar for WOT performance
  • Every set high pressure matched within 1%
  • Every injector type validated for identical SOI and EOI via XDI proprietary injection rate measurement


  • 2016-2018 Focus RS
  • 2013-2018 Focus ST
  • 2.0L Ford EcoBoost
  • 2.3L Ford EcoBoost

Return Policy

You have 7 calendar days to return an item from the date you received it. To be eligible for a return, your item must be unused and in the same condition that you received it. Your item must be sealed in the original packaging. Your item needs to have a receipt or proof of purchase. Some exclusions apply.

For additional details see our Return & Refund Policy.

Installation Guides

To see all available installation and break-in instructions, click here.

Disclaimers & Legal

This part has been designed and is intended for off-highway application only. Installation of this part on a vehicle that is driven on public roads may violate U.S. and Canadian laws and regulations relating to emission requirements and motor vehicle safety standards.

Click Here for emissions compliance information.

California Residents Prop 65 Information
California’s Proposition 65 entitles California consumers to special warnings for products that contain chemicals known to the state of California to cause cancer and birth defects or other reproductive harm if those products expose consumers to such chemicals above certain threshold levels. This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

For more information visit

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