The patented ProFlex Commander adaptive flex fuel system for BMW E46 M3 is a full bolt on performance flex fuel system. Right out of the box you can run E85, gas, or any blend seamlessly without the need to tune or switch maps. Customers can expect dybo proven 20+whp gains.

"The power gains are addicting... The fittings were perfect and require no trimming or modifications. The ProFlex Commander makes power both safely and reliably ...is worth every penny." -BuildJournal

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
• Cold Start Plus™ - improves fuel atomization for easier starting in cold weather
• ProFlex Connect app - provides real time fuel content percentage via BT Wireless communication with our Apple or Android device

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: Supercharged cars may require upgrades to the fuel pump and/or injectors to run full E85. Supercharged cars should be dynoed or logged to ensure the fuel system is able to meet the demand of the fuel or blend customers wish to use to ensure safe engine operation. Please contact us for more information.

Use our iOS or Android app to connect to your ProFlex Commander!

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