I won't DD a turbo car without it any more. It is so much better. Now, if you have a car that can't run it because of no way to tune or way to mod fuel system, or you live where there aren't any stations that carry it then it wouldn't be worth it.
2012 Focus Titanium
2001 Camaro SS, A4 - DD
2002 Camaro SS, down for rebuild, almost done...
2003 Neon SRT-4, Big turbo, E85 SOLD!