All tuners play it pretty safe and being N/A applications, it's pretty easy to do. when it comes to FI applications, a lot play it safe but I've seen some that will put you on the edge with the AF ratio.
the ghost cam, which I've used and it's for show really, it just dumping more gas like mentioned. You definitely don't want to have cats still in with it cause unburnt gas (which is what the ghost cam is doing) actually kills your cats. I love the "offroad" disclaimers when it comes to no cats and such. Also, I don't have cats and I almost never smell gas or any fumes.
2014 Mustang GT, A6, Grabber Blue