Uploaded June 2026 | Updated September 2026, 1 week ago

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Our Auxiliary Fuel Kit adds supplemental port injection for Focus ST, Focus RS, Fiesta ST, and EcoBoost Mustang platforms using a plug-and-play controller and harness designed in-house.

✔ Supports larger turbo setups
✔ Ethanol content integration
✔ OEM-style installation
✔ More affordable than upgrading DI pumps and injectors
✔ Helps keep intake valves clean

A complete fueling solution for serious EcoBoost builds.

#focusst #focusrs #fiestast #stratifiedtuned #cobbtuning