E85, sadly, is not even remotely an option. Nearest station is 100 miles away and I'm not storing it.
Just saw your updated post, thanks for the input!
That sucks.
In that case: 3-port boost controller, have an exhaust shop do a 3" exhaust from the downpipe back (make sure to put good resonators on it), and tune. If you could swing it, I'd highly recommend throwing in some GSC S3 cams, they make a world of difference over stock.
I highly recommend not bothering with brand name test pipes/exhausts. They're overpriced for what they are.