Effortless performance with eFlexPlus E85 Flex Fuel Conversion Kit
You don’t have to be a tuning expert to get more out of your vehicle while driving on E85. The eFlexPlus E85 flex fuel kit gives you the power you’re after and the ability to change engine performance settings on the fly.
Fully automatic system with no tuning or changing maps required: Drive on E85, gasoline or a combination of the two
Complete flex fuel system specific to your vehicle with everything included for DIY installation
Piggy-back technology that doesn’t interfere with the OEM engine systems
Monitor your engine and choose between Economy, Sport and Dynamic performance modes with your smartphone
We verify the compatibility of your fuel system and possible engine modifications for E85: fuel injectors, fuel pump, fuel lines
With eFlexPlus your engine is always optimized on any fuel blend. It is a more streamlined tuning experience than the eFlexPro kit. This is the ideal E85 flex fuel conversion for the amateur racer and offroad driver that’s looking for an effortless way to add engine power.
No tuning required!
Unleash the full power with eFlexPro E85 Flex Fuel Conversion Kit
The eFlexPro is a patented E85 flex fuel conversion kit designed for technical auto enthusiasts and professional drivers who want more power and precision from their engine. Adding horsepower is expensive. With eFlexPro, you can offset some of those costs and get the power you want with fully customizable fuel maps.
Fully automatic system with no tuning or changing maps required: Drive on E85, gasoline, or a combination of the two
Complete system specific to your vehicle with everything included for DIY installation
Piggy-back technology that doesn’t interfere with the OEM engine systems
Connect to two OEM or external engine sensors: MAF, MAP, TPS or WBO. Create your own E85 tunes with eFlexTuner PC software’s fully adjustable fuel maps.
We verify the compatibility of your fuel system and possible engine modifications for E85: fuel injectors, fuel pump, fuel lines
If maximum power is what you’re after, choose eFlexPro. Drive on with E85 or gasoline and optimize your vehicle for the way you like to drive.
Plug&Play installation - An experienced mechanic will install in 1h-2h. For first time DIY installation, expect to double the time needed.
Technical specs
Make & Model
Year
Engine
Power
Always Optimized Fully Automatic Flex Fuel
Cooler & Cleaner Engine
Complete System, No Tuning Needed
Up to 10% Increase in PerformanceUp to 20% Increase in Performance
Your Fuel System Verified
Automatic engine tune adjustment in real-time to match the fuel blend
eFlexApp for smartphones
Ability to connect to two OEM or external engine sensors: MAF, MAP, TPS or WBO
eFlexTuner tuning software for Windows PC
Ability to create custom E85 tunes with fully adjustable 3D fuel maps
+ What's included
Control unit (3” x 5 1/5” x 1” in)
Ethanol sensor
Wiring harness specific to your vehicle with an external temperature sensor
Two additional analog inputs that plug in to the engine’s own sensors (MAP, MAF, TPS or WBO) - included only in eFlexPro
Cable ties
Male fuel injector connectors
Fuel hose
Fuel line quick connectors
Fuel line disconnect tool
Hose clamps
Installation and User Guide
+ eFlexApp
All eFlexFuel kits feature a Bluetooth connection and eFlexApp for your smartphone. eFlexApp allows you to monitor your engine in real-time while driving on E85, gasoline, or a combination of the two. You can also toggle between three different engine performance modes: Economy, Sport, and Dynamic.
Features
Monitor ethanol content, fuel temperature, ambient engine temperature, injector duty cycle and cold enrichment, etc.
Choose your driving mode (Economy, Dynamic, Sport)
Display OEM engine sensor data: MAP, MAF, TPS, or WBO
Custom E85 tunes (Created with eFlexTuner)
3
+ eFlexTuner
eFlexTuner is a free PC software that connects to eFlexFuel kits via Bluetooth. Create your own custom E85 tunes and switch them while driving from the eFlexApp.
General Installation and User Guide is included in the product package.
Note: If your car is modified you can use E85 with eFlexFuel. If this is the case, please list all the main engine modifications on the checkout page. Our technical team will ensure that your setup is fit for E85.
Not legal for sale or use on pollution-controlled vehicles
SKU: U-EF-PLUS 
SKU: U-EF-PLUS 
Always Optimized Fully Automatic Flex Fuel
Cooler & Cleaner Engine
Complete System, No Tuning Needed
Your Fuel System Verified
Not legal for sale or use on pollution-controlled vehicles