2007-15 W204 Mercedes 6.3L AMG (M156) Advanced Fuel Dynamics ProFlex Commander

The patented ProFlex™ Commander adaptive flex fuel system for 2007-15 Mercedes C63 AMG and other 6.3L AMG vehicles allows you to start making more power and running cooler with E85. True plug and play flex-fuel for your AMC in about an hour with no tuning required.

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: 2007-15 C63, 2009-11 E63, 2007-15 CLK63,
2007-15 CLS63, 2007-15 CL63 and 2007-15 SL63

PLEASE NOTE: Customers with headers will require upgraded fuel injectors to safely run full E85. Fuel injectors are not included with this system. Please contact us to add injectors to your order.

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.

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.

Installation

Click here to download the installation instructions.

Dyno Data for C63 Flex Fuel Kit

The 2007-2015 W204 Mercedes C63 AMG makes 30+ WHP gains using the ProFlex Commander and E85. Click here to view the C63 AMG dyno data.

Installation Video

Watch the C63 AMG on the Dyno

PROFLEX Connect App

With the free PROFLEX Connect app you can connect your smartphone to your PROFLEX Commander and view your vehicle’s ethanol content in real-time, locate and navigate to E85 pumps near your location and run system monitoring and diagnostics. Available for iOS and Android. Click here to learn more.

Vehicle Fitment