I want to make the switch to e85 in my 2010 ralliart but would prefer not to pay the $400 for the tune at my local tuner. Right now I'm running a gst tune and am pretty happy with it. I'm just wondering if there is a similar free e85 tune that is of the same quality/reliablity as a gst tune? Yes I know I'm cheap yes I know I will get better proformance from a custom tune for my specific car so don't bother with those posts, I'm just exploring my options.

no

There is a reason good tunes cost money. Bad ones cost you money too, but thats after the engine blows up

Agree with shrtstuff89. Save up the money and pay for a tune.