The patented ProFlex™ Commander adaptive flex fuel system for 2009-13 Chevy Silverado or GMC Sierra 5.3/6.2L V8-equipped trucks allows you to start making more power and running cooler with E85. True plug and play flex-fuel for your GM truck 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 and 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

This System Fits:
2009-2013 Silverado/Sierra
Note:
For 2014-2017 V8 Silverado/Sierra - See our FlexLink Kit

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.

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.