Add up to 30 Wheel Horsepower To Your BMW E36/E46 M3 and E36/7 Z3M By running Your vehicle On E85 Fuel. The APE Flexfuel system features an integrated ethanol sensor allowing 91/E85 octane without the need for mixing or calculating fuel blends as it will automatically adjust to optimum performance for detected octane.
Why buy our E85 Flex Fuel Kits?
- 10-15% increase in rear wheel horsepower
- The lower cost of E85 results in a 5-15% decrease in dollars spent per mile
- Your engine will run 10-15 degree cooler than running it on straight gasoline
- Emissions reductions of E85 compared to conventional gasoline range from 51% to 88%
- The biggest bang for your performance buck
- Compatible with 3rd Party Flash tunes for additional performance
Flex Fuel Power Module
- Plug and Play Flex Fuel Conversion Module
- Allows vehicles to run gasoline, E15, E85, E98 or any mixture of the three
- Dynamically adjusts fuel injector pulses based on ethanol content measured in the fuel
- Contains Fuel Composition Sensor, Control Module, and Wiring Harness
- IOS and Android apps available for configuring system and real time monitoring of fuel injector duty cycle and ethanol content of fuel via Bluetooth Low Energy (BLE)
- 1 year warranty
Ethanol Percentage Monitor
Alternative Performance Engineering has an iPhone & Android application called “APE X85” that lets you monitor your Ethanol Percentage and maximum injector duty cycle.
Real-Time Data
Alternative Performance Engineering’s state-of-the-art APE X85 application enables mobile users the ability to monitor their data in real time, maximizing performance.
Fuel Calculator
The app provides a fuel calculator that recommends the maximum safe ethanol percentage your vehicle can run, allows the user to configure settings like cold start enrichment, and the Advanced Tuning feature helps trim fuel delivery across specific RPM ranges.
Bluetooth Connectivity
The app works wirelessly through Bluetooth Low Energy, offering convenience and seamless function.
Typical Results
Stock BMW E46 M3 running our easy to install Flex Fuel kit. Stock rear wheel horsepower is increase to over 270.
Is Flex Fuel (E85) available near me?
Check the Ethanol Finder that shows locations of E85 gas stations. E85 becomes more available everyday so continue to look on the websites for updated resources and keep an eye out for an E85 sign at your local gas stations. For mobile, GasBuddy has an E85 station locator in the filters.
Do I have to retune my vehicle to run Flex Fuel?
Installing the APE X85 module is a complete plug and play system. You don’t have to touch your vehicle’s computer. The X85 modifies your vehicle’s computer fuel injector signals to work correctly with Flex Fuel.
Do I need to change my fuel injectors to run Flex Fuel?
The answer is typically no, but it depends on the vehicle and whether or not it has any modifications. The APE IOS and Android apps that work with the X85 module have the ability to measure your vehicle’s maximum fuel injector duty cycle, and if your vehicle is near 100% it can recommend an appropriate ethanol mixture that will work with your vehicle.
Can I run Flex Fuel in cold climates?
Vehicles running E85 typically have issues starting in cold weather. We recommend mixing some gas with your E85 to help in this situation. The APE X85 also has the ability to add additional fuel at startup to help.
Isn't an E85 specific tune better for my vehicle?
Yes and no. If you have an engine tuner modify your vehicle’s computer to run E85, then it is possible to see higher power gains as the tuner can maximize timing for E85. The downside is that you have modified your vehicle’s stock computer which would void your warranty. Also, since the vehicle will be specifically tuned to run E85, then you will have to only put E85 in your vehicle. The APE X85 module comes with a fuel content sensor which measures the exact amount of ethanol in your fuel and modifies the fuel injectors to work for that mixture. This gives the driver complete flexibility.
Vehicles Supported
BMW E36 M3 (S52)
BMW E46 M3 (S54)
BMW E36/7 Z3M (S52/S54)
