ProFlex Commander for Ford Mustang GT S197 and S550 5.0 (Coyote) - S550 / Standard

The ProFlex Commander Standard is a plug-and-play adaptive flex fuel system for 2015-2017 Ford Mustang GT S550 models equipped with the 5.0L Coyote V8. Utilizing patented BlendSense™ technology, the system continuously monitors ethanol content and automatically adjusts fuel delivery in real time, allowing you to run gasoline, E85, or any blend in between without tuning or map switching. Customers can expect gains of 7-10% more wheel horsepower and torque on E85 while benefiting from cooler engine operating temperatures and enhanced overall performance.

Why ProFlex™ Instead of Fixed E85 Tunes?

Unlike fixed E85 tunes that assume a constant ethanol percentage, ProFlex Commander continuously measures ethanol content and adjusts fueling in real time. Since pump E85 can vary significantly in ethanol concentration, ProFlex ensures accurate fuel delivery regardless of the blend in your tank, helping maximize performance while maintaining proper engine operation.

Why Real-Time Flex Fuel Matters

Many traditional flex fuel solutions rely on historical oxygen sensor data to make fueling corrections, which can create delays when fuel blends change. ProFlex Commander's patented BlendSense™ technology responds instantly to changing ethanol content, helping provide accurate fueling whether you're running gasoline, E85, or any mixture in between.

Key Features

Complete plug-and-play flex fuel system
100% dyno tested for safety, durability, and performance
Easy DIY installation in under an hour
Patented BlendSense™ technology with a 30 millisecond refresh rate
Run gasoline, E85, or any ethanol blend seamlessly
7-10% more wheel horsepower and torque on E85
No tuning required
Compatible with stock and performance gas calibrations
Automatically adapts to future tune changes
Improved injector management for optimized fuel delivery
Compatible with power adders and bolt-on modifications
ProFlex Connect™ app provides real-time ethanol content monitoring via Bluetooth
Cold Start Plus™ technology improves cold-weather starting
Helps eliminate fuel management latency issues common in factory ECUs
Cleaner emissions and cooler cylinder, oil, and coolant temperatures
Race-grade octane benefits from readily available E85 fuel

Fitment

2015-2017 Ford Mustang GT (S550)
5.0L Coyote V8 Equipped Models

Standard Commander Benefits

Ideal for stock and lightly modified naturally aspirated vehicles
No tuning or ECU recalibration required
Seamless transition between gasoline and E85
Maintains factory-like drivability and reliability
Perfect for daily driving, street performance, and weekend track events

Note: Fits 2015-2017 Ford Mustang GT S550 models equipped with the 5.0L Coyote V8. Not compatible with 2018-up direct injection 5.0L applications. The Standard Commander is designed for factory-style fuel systems and stock injector applications. Installation can typically be completed in under one hour using common hand tools.