I believe OP is referring to an aftermarket parts some people have put on the 3, so that when you hit the Frunk button on your key fob (for example) the Frunk goes all the way up, instead of just popping up a bit.
I've not seen anyone do this on the X, but the videos I've seen on the 3 make me worry about the amount of pressure needed to close the Frunk with those heavy duty struts.
Keep us posted if you do end up doing it.