You guys are too funny! My car is bone stock, so I wasn't seriously considering it for myself. But everyone here knows so much more than I do about this stuff. I was trying to help my buddy by gaining knowledge here and sharing it with him. He made a mod on a previous Mustang that he regretted.
I've read a lot of your advice on mods and tunes, etc. over the years, but was surprised I had never seen a thread on this particular plug-in "tune," that claims to be "undone" as soon as you unplug it.
I do appreciate you sharing these thoughts...and jokes.