Earlier this year we were able to release COBB Custom Features for the 2008+ WRX and STI. The most sought-after feature in that release was the ability to create true Flex Fuel calibrations for your car. Gone are the days of having to switch calibrations every time you visit the gas pump. The Flex Fuel calibration simply utilizes the actual ethanol content of the fuel to appropriately blend an assortment of related tables. Today, we are extremely excited to announce that COBB Custom Features, including Flex Fuel, are now available for the 2015-2017 USDM Subaru WRX!