Cobb Tuning recently released a flex fuel kit for WRX's/STi's that allows you to put whatever fuel you choose (between 91 and E85) in your car and it will automatically adjust your tune for you easy peasy. All that required is the fuel pressure sensor kit, the ethanol sensor kit, and two tunes(one on the lowest octane you would run and the highest you would run).
http://www.cobbtuning.com/products/flex-fuel/subaru-flex-fuel-package-wrx-2008-2014-sti-2008-2016
Is there any option for our cars to do this? I never plan on running anything other than E85, but it would be helpful to use if I were to go on a road trip. Imagine never having to plan your trip from E85 station to E85 station!
http://www.cobbtuning.com/products/flex-fuel/subaru-flex-fuel-package-wrx-2008-2014-sti-2008-2016
Is there any option for our cars to do this? I never plan on running anything other than E85, but it would be helpful to use if I were to go on a road trip. Imagine never having to plan your trip from E85 station to E85 station!