Is it worth it, not in my opinion, especially with the cost of corn now. It is capable of increasing HP with the right tune since there is less chance of detonation. It will require larger injectors and a tune, not sure what else is needed.I have a buddy who runs e85 and he says he doesn't regret it and claims he picked up at least a 10% hp gain. I was just wondering is it worth it first off all? and what all is required to run e85? thanks.