Tune. With 93 octane, looking at over 70hp and over 80lb ft of torque with just a tune. The EB is detuned a lot, so a huge bang for your buck in just a tune. Ford will be able to know you flashed the computer if they really want to, so use at your own risk. No engines or drive line parts hurt on tune only SHOs as far as I know.
I would go with Livernois, they are in the Detroit area. One of the best and main EcoBoost tuner. Check them out since you are near them. They will get you set. Buy a $60 3bar map sensor and get the Livernois v8 tune for it. This will get you a 12.7 at 110mph luxury boat! Next is down pipes, allows turbos to spool earlier and another. 2 or so off. People claim around a 0-60 in 4 seconds with these mods.
A CAI does not improve performance, does the opposite. But increases engine noise, which a lot like. Some threads going on right now about fixing it.