Subaru VB WRX E85 Tune Add On

This is option is for getting a separate E85 tune for you car if you are already using a custom pump gas tune from us.

You must already have an existing tune from us to use this add-on option.

This tune add-on works for any modifications and is a custom tune where we will review logs and adjust the tune until everything is perfect.

When using E85 without a Flex Fuel kit, we recommend periodically testing the Ethanol content of your local pump. If it is blended to higher than 75% Ethanol, we recommended blending 1-2 gallons of pump gas in with a full tank to keep your final ethanol content lower.  This ensures the fuel system can safely supply enough as higher ethanol blends demand more fuel.