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High Flow Direct Injection Fuel System Upgrade Focus RS 2.3L

High Flow Direct Injection Fuel System Upgrade Focus RS 2.3L


Regular price $1,999.00
Regular price $1,999.00 Sale price $1,999.00
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These kits are made to order. Current production time is 8-10 weeks from the time the order is placed.

The Focus RS with the 2.3L EcoBoost engine is an incredible platform that lends itself well to power upgrades. However, the potential to achieve in excess of 500hp has been limited by the capability and capacity of the original fuel system. Up until now, the only way to reach higher levels was to use an auxiliary fuel system that can be cumbersome and unreliable.

The first step in maximizing the fuel system is to install an upgraded High-Pressure Fuel Pump. Our technical partner, Xtreme-DI has designed and engineered the best upgraded DI pump available. While the upgraded pump by itself will allow for an increase in performance, the stock original injectors will soon run out of capacity.

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 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 RS in the world. Components are available separately for those that already have the HPFP-35 pump upgrade.

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 HPFP-35 High-Pressure Fuel Pump
  • 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, and 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
Note: If you already own an Xtreme-DI HPFP-35 High-Pressure Fuel Pump and would like to order the Xtreme-DI Fuel Injector set alone, feel free to email us at to place an order.


2016-2018 Focus RS

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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