You're going to get more like 25 at the most, and you're going to have to use premium fuel.
But I'm not sure if a little Honda engine could even spool two turbos.
I think I seen 2 in there, I dunno I'll have to take a look next time I see it.
I'll say about 25 mpg at the least, also we just use regular unleaded and it works fine.
I might trade it for a auto once its mine.