949 €VAT included

eFlexPro E85 conversion kit. Includes necessary accessories.

Optimize engine performance with over 104 octane bioethanol. The customizable fuel maps and parameters of the eFlexPro control unit provide precise and fast adjustment of the engine fuel mixture.*

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Instructions ->

Installation videos ->

Increase power and torque

With eFlexPro you can get up to 15% more power and torque from the engine with ethanol fuel. More than 104 octane fuel is particularly useful for supercharged engines.

Connect to the engine sensors

You can connect the eFlexPro Controller to two motor sensors, eg. MAP, MAF, TPS or WBO (Retrofit Broadband Lambda Sensor). With the help of these sensors, the eFlexPro system measures the engine load level, which can be used to help adjust the fuel mixture.

eFlexTuner-control application

With the eFlexTuner control application, you can modify your eFlexPro hardware settings in real-time via Bluetooth. The control application runs on computers running Windows 10.

Check out the eFlexTuner control application ->

Adjusting the fuel mixture

Adjustments are made using the eFlexTuner control application. The fuel maps of the eFlexPro device allow you to accurately change the fuel supply of your engine to your desired RPM levels and to change the enrichment according to the ethanol content of the fuel. The current engine operating point is displayed in real-time on the application map, so adjustment is quick and accurate.


You can save the eFlexPro hardware operating parameters to a log file while running with the eFlexTuner control application. The collected log can be viewed afterwards. For example, monitor the injector duty cycle based on RPM levels and driving conditions, and quickly identify areas that require fine-tuning.

Optimized engine

The eFlexPro is the best option if you want more power and torque from the engine. The ethanol fuel optimized engine has improved lower torque and pulls efficiently throughout the rev range. A better driving experience and faster lap times await you!


  • 1-8 injector channels
  • Ethanol content detection
  • Automatic cold start
  • Wireless connection via Bluetooth
  • Free eFlexFuel app
  • Faul detection
  • External temperature sensor
  • Waterproof control unit (IP68)
  • eFlexTuner software (Win 10)
  • eFlexTuner software:
  • Base enrichment tuning
  • RPM specific tuning
  • Adjustable startup maps
  • Data logging
  • View log files
  • Settings files
  • Password protection
  • Analysing the log
  • External sensor inputs
  • Load enrichment
  • Additional fuel map

Package content

  • Device Package:
  • eFlexPro control unit
  • Ethanol sensor
  • Installation and user's guide
  • Wiring harness package:
  • Wiring harness (for 1-4 cylinders)
  • wiring harness for 5-8 cylinders (4 pieces)
  • Cable ties
  • Male connectors (10 pieces)
  • Additional wiring for two external sensors
  • Installation package:
  • Fuel hose
  • Quick connectors
  • Hose clamps
  • Tools for detaching the fuel line

Product information

  • 3-year-warranty (control unit)
  • Free product support
  • Designed and manufactured in Finland
  • * The eFlexPro system can only influence engine adjustments when using ethanol fuel. The engine control must be preset with petrol. Engine control adjustments must take into account possible changes made to the engine, such as the addition of a turbocharger or injector replacement.

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Our technician will check the compatibility of your vehicle before delivery. We always return your money immediately if eFlexFuel products are not compatible.

Please note:

  • eFlexFuel products are not compatible with Diesel engines.
  • eFlexFuel products are not compatible with direct injection engines like TFSI, TSI, CGI, FSI, GDI, EcoBoost.
  • If you switch eFlexFuel products to another vehicle please contact our support first.