ProFlex DX for 2018-2023 Mustang GT and Mach 1 5.0L Coyote

The ProFlex DX is a patented adaptive flex fuel system engineered specifically for 2018-2023 Ford Mustang GT and Mach 1 models equipped with the dual-injection 5.0L Coyote V8. Designed to provide true real-time flex fuel capability, the system automatically adjusts fuel delivery based on ethanol content, allowing you to run gasoline, E85, or any blend in between without tuning or calibration changes. Expect gains of 40-45 wheel horsepower on E85 while benefiting from cooler operating temperatures and enhanced performance throughout the RPM range.

Key Features

Complete plug-and-play adaptive flex fuel system
Designed specifically for dual-injection 5.0L Coyote engines
100% dyno tested for safety, durability, and performance
Installation in approximately one hour
Patented BlendSense™ technology with a 30 millisecond refresh rate
True adaptive flex fuel operation with automatic ethanol compensation
40-45 WHP gains on E85
7-8% more wheel horsepower and torque on E85
No tuning required
Compatible with stock and performance gasoline calibrations
Automatically adapts to future tune changes
Advanced digital injector management for optimized fuel delivery
Compatible with bolt-ons, power adders, and forced induction applications
Supports upgraded MPI injectors for high-horsepower builds
ProFlex Connect™ app provides real-time ethanol content monitoring via Bluetooth
Integrated E85 fuel station locator through the ProFlex Connect™ app
Cold Start Plus™ technology improves cold-weather operation
Helps eliminate fuel management latency common in factory PCM strategies
Cleaner emissions and cooler cylinder, oil, and coolant temperatures

Fitment

2018-2023 Ford Mustang GT
2021-2023 Ford Mustang Mach 1
5.0L Gen 3 Coyote V8 with Factory Dual Injection

Performance Benefits

Run gasoline, E85, or any blend without switching tunes
Substantial horsepower and torque gains on E85
Cooler combustion and operating temperatures
Higher effective octane for improved knock resistance
Maintains factory drivability and everyday usability
Ideal for street, track, and performance driving applications

Development & Testing

Developed exclusively for the dual-injection Gen 3 Coyote platform, the ProFlex DX system underwent more than 2,000 miles of street, track, and dyno testing. This extensive validation ensures reliable operation, accurate fuel control, and consistent performance across changing ethanol blends and driving conditions.

Note: The ProFlex DX system is designed specifically for 2018-2023 dual-injection 5.0L Coyote applications. Installation can typically be completed in about one hour using common hand tools. Forced induction applications may require upgraded MPI injectors depending on power levels and fuel requirements.