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-20+ WHP gains
-Full bolt-on, no tuning required
-Works seamlessly with existing mods and pump gas tunes
-View ethanol percentage on app

The PROFLEX Commander for 2000-2006 BMW E46 M3 is a plug-and-play performance E85 flex fuel system with dyno proven performance, and the ability to run E85, gas, or any blend right out of the box without the need to tune or switch maps. Customers can expect 20+whp gains.

Questions? See our FAQ page or give us a call at 866-902-3835

PLEASE NOTE: An E46 M3 with a supercharger may require upgrades to the fuel pump and/or injectors to run full E85. Supercharged M3’s should be dynoed or logged to ensure the fuel system is able to meet the demands of the specific E85 fuel 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!

What comes in the box:
-PROFLEX Commander Unit for S54 M3 engine with Smartphone Connectivity
-Flex Fuel Sensor with fuel line and fittings for BMW S54 engine
-Plug-and-Play Wiring Harness for E46 M3

Weight 20.000336425412 lbs
Make Model Year
Make Model Year
BMW E46 M3 2001 - 2006