Tune Update - FA20 Add Flex Fuel

This tune update is for existing FA20 (2015-2021 WRX) customers who want to add a flex fuel kit and get tuned for E85. It is recomended to have an upgraded fuel pump to run higher than an E50 blend. We sell the Cobb CAN Flex Fuel Kit here:https://www.boostedperformancetuning.com/product-page/cobb-can-flex-fuel-kit-2015-2021-wrx