COBB's E30 MAPs are specifically to FBO S2+. With 30% ethanol. I wouldn't use these maps otherwise. If you are looking to take advantage of E85 on your build, I would get a protune etune. I am S1+ or will be this weekend, with E30, ACN 91 and E85, and working with Jake @ Pro Tuning Freaks. By doing so will maximize my tune with 91 octane and ethanol. I am sure COBB will come out with more E30 MAPs, but in The meantime you'll just have to find other ways of getting maximum power of ethanol.
SOLD:: PTF Pro eTune by Dzenno / COBB S1+ E50
Alpina B3 Flash / ETS FMIC / ER CP / CPE DCI