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

The patented ProFlex™ Commander adaptive flex fuel system for 2011-17 Ford Mustang GT 5.0 allows you to start making more power and running cooler with E85. True plug and play flex-fuel for your Coyote 5.0 in about an hour with no tuning required.  Customers can expect 7-10% more wheel horsepower and torque on E85.


We know Mustang owners have a couple of ways to run E85 with fixed map tunes or wide-band systems.  If you are comparing these options here are some things to think about:

E85 Tunes: A fixed map E85 tune or switch map tune is never correct unless you run E85 race fuel from a barrel.  If you go to the pump you will never get 85% ethanol. The federal standard is 51-83%.  If you run an E85 tune and you don't have 85% ethanol you will always be washing your cylinder walls and will eventually ruin your piston rings.  The patented ProFlex system is a real time adaptive flex fuel system that always delivers the right amount of fuel for the blend in your tank.  E85 tunes are the dinosaur of E85 options.  ProFlex is the future of flex fuel.

Wide Band Flex Fuel: A wide-band system uses historical data from your O2 sensors to try and figure fuel delivery based on correcting for rich or lean conditions. The problem with wide band systems is something called latency.  Essentially, latency means that when your fuel percentages change it takes a long time for the computer to figure it out, and while that happens you will be running lean or rich.  Fill up with E85 on the way to the track and you will be running gas fuel loads with ethanol in the tank, which can cause lean burn which can melt your pistons.  Switch back to gas and you will run rich and wash your cylinder walls.  The ProFlex system is a real time flex fuel system, which means it has zero latency.  With ProFlex the fuel loads are correct 100% of the time no matter how many times you switch fuels or fuel blends.  Wide band works, but ProFlex works faster and protects your engine.

ProFlex Commander Features:

  • Complete system - everything you need to run E85
  • 100% Dyno tested for safety, durability and power gains
  • Easy DIY installation - Under an hour with common tools 
  • Patented BlendSense™ technology adjusts in real time with 30 millisecond refresh rate
  • True flex fuel - switch from gas to ethanol and back anytime
  • Improved injector management for more power on gas or E85
  • 7-10% More wheel HP and torque on E85 (dyno proven)
  • No tuning required - Compatible with stock or performance gas tunes; instantly adapts to new tunes
  • Cleaner emissions and cooler cylinder, oil and coolant temps
  • Race grade fuel at the pump - high octane, low cost
  • Compatible with power adders and bolt-ons
  • ProFlex Connect app provides accurate, real-time ethanol content on your iPhone or Android device via BT Wireless communication
  • Cold Start Plus™ - improves fuel atomization for easier starting in cold weather
  • Solves fuel management latency issues that plague stock ECUs

This System Fits: 2011-17 Mustang GT 5.0L (not compatible with 2018-up direct injection 5.0)

Choose Commander Pro (option below)

Choose the ProFlex Commander Pro for your vehicle if you have aftermarket forced induction or aftermarket 600cc/60lb/hr or larger injectors.  If you plan to make these upgrades later order the PRO.  It will work fine with your existing set-up and will automatically adapt when you install your upgrades.

The Commander PRO was specifically designed for improved injector function in forced induction and large injector environments.  


The ProFlex Commander product line is backed by a limited 12 month warranty. Learn more.

| Categories: Flex Fuel Kits