Front/rear sway bar questions

[geokots]

This is sort of a sway bar 101 type question. Yes I looked but couldn't find something specific to this.

Now that my car is about to got to sleep for the winter, I'm starting to plan what I'm going to do in the spring. I am most likely going with Eibach Pro springs for a slight drop and stiffness. No, not going with Coilovers as it's a little overkill for my needs. I'm familiar with the Eibach Pro kit from having them on my Mustang Ecoboost.

I'm thinking of also getting the swaybars from Eibach. I've read (but can't find the post) that the Z benefits from upgrading the front but not the back. Is this true? Also what are the pros and cons of upgrading the sway bars? I see that there are 3 ways to mount them, again pros and cons.

Sorry if this has already been answered 100 times. When a car has been around as long as this, sometimes things get lost in the noise.