Introducing COBB CAN Flex Fuel for the 2023+ Subaru Ascent and Outback! At COBB, we have been adding Flex Fuel tuning to Subarus for nearly a decade.  Our NexGen module and fuel system upgrades are track tested and make adding flex fuel to EJ-powered Subarus truly turn-key.  Subaru’s transition to direct injection for the 2015+…