Jeep Grand Cherokee SRT and SRT-8 Advanced Fuel Dynamics ProFlex Commander

The patented ProFlex™ Commander adaptive flex fuel system for 2012-up Jeep Cherokee SRT and SRT8 allows you to start making more power and running cooler with E85. True plug and play flex-fuel for your V8 Cherokee in about an hour with no tuning required. Expect 30-35WHP gains on E85.

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

This System Fits: 2012-Newer Jeep Cherokee SRT and SRT8 

Which ProFlex Commander Option Should You Choose?

Standard Commander

The Standard Commander is the go-to choice for stock or lightly modified vehicles running factory fuel injectors and naturally aspirated setups. If you haven’t upgraded your injectors or added forced induction (like a supercharger or turbo), this is the perfect fit.

• No tuning required
• Seamless flex fuel performance
• Ideal for street-driven and daily performance builds

Commander Pro

The Commander Pro is built for high-performance builds with upgraded fuel systems. If your vehicle has (or will have) aftermarket forced induction or larger fuel injectors (600cc / 60 lb/hr or bigger), the Pro is your move.

• Works with your current setup — and scales as you upgrade
• Recommended for turbocharged or supercharged builds
• Features more precise injector management for controlling big injectors.

Bottom line:
Got boost or big injectors? Go Pro.
If not, the Standard is all you need.

Which Fuel Sensor Do You Need?

Standard Sensor

The Standard Sensor delivers rock-solid ethanol content readings and is great for most stock or mildly modified fuel systems.

• Accurate ethanol % readings
• Reliable performance for daily and spirited driving
• No extra bells and whistles — just works

E-Sense Sensor Upgrade

The E-Sense is designed for modified fuel systems where precision and performance matter most.

• Higher flow capacity for high-horsepower builds
• Adds fuel temperature monitoring
• Unlocks real-time data in the ProFlex Connect app

Rule of thumb:
If your fuel system is stock, go Standard.
If it’s modified, go E-Sense.

Please note: Modified cars may require injector upgrades. Please contact us for more information.

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

Jeep Grand Cherokee SRT Dyno on E85

This 2017 Grand Cherokee SRT picked up 28WHP and 31lb-ft tq with the ProFlex Commander and E85 over gas. Click here to view more.

Vehicle Fitment

Installation

An excellent user-created, step-by-step installation video.

Installation

Click here to download installation instructions.

PROFLEX Connect App

With the new version 2 PROFLEX Connect app you can connect your smartphone to your PROFLEX Commander and run the automatic diagnostic, view your vehicle’s ethanol content in real-time and search for an E85 fuel station near you and navigate to the pump. Free for iOS and Android devices. Click here to learn more.