You do have a Panhard bar
Its very flimsy and weak.
The 2011-2013 have a problem with chassis flex and the back end moving around. Beyond just breaking the tires loose
. The pan hard bar bolts right above your lower control arms to keep the rear end from moving around independently and elminates wheel hop. You may not feel alot of hop right now depending on what your tire size is that meets the road and how much hp you actually have at the wheel. But as you increase you want to keep that from happening. The best fixes for it are Panhard bars and control arms.
Does that help?