I picked up a Whiteline BHR93 Rear sway bar, which is for 3/2011 and newer Cruzes and installed it on my 2012 2LT this weekend. I hadn't seen any threads about this sway bar yet, only the version for older Cruzes that mounts in the traditional way with links and bushings and is adjustable.
The BHR93 is not adjustable and mounts to the bottom of the axle where the spring locator is. The spring locator is removed and replaced with a machined aluminum locator that is threaded for the bolts to bolt the bar across the rear end. The directions specified to unbolt the bottom of the rear shock to drop the suspension, remove the springs, replace the locators, then reinstall everything.
I was able to do it simply by lifting the rear end, punching out the old locators, pulling the new ones in through the rubber pad with the bolts, then mounting up the bar. It was a piece of cake and took around 45 minutes only because we were taking our time. No suspension removal required.
The bar itself was painted silver and looked like it was good quality. The flat parts on the ends that were mounted had some rough machining marks, but I doubt it will mean anything to the performance of the bar. It's a very trick piece that runs right along the torsion beam to increase the rear suspension rigidity.
Unfortunately it out-stabilizes the front by a small amount, and now I feel like I need to install the BHF93 27mm front sway bar to fix it. It's not urgent, however, as I have not had any traction issues on hard corners despite the rain. I just want it to feel a bit more balanced and planted in the front. It's just too bad the front sway bar requires dropping the subframe to remove and replace.
Performance of the rear is definitely awesome now. It's very firm and planted and all the body roll/chassis twisting that bothered me is now gone. I haven't installed the rear tower brace or anything else yet, and I'm not sure I need to.
Pics to come later.