My 16' Sport CC is lowered on a BT 2/4 kit. I had Ultimate Audio in Lexington SC order mine and also install it. Considering that they build some of of the Carolina Panthers and other NFL players cars, and they ahve built many of stereo systems for myself and hundreds of buddies here in SC. They advised me to NOT get the BT "nitro" drop shocks, and to just run my factory shocks, because my truck had only 520 miles on it when I took it there. My alignment after was off, and I was told it needed an adjustable kit to zero it back out. I am not sure about the "death wobble" because my steering wheel doesn't do the "tank slapping" part of what I consider to be a "death wobble" but holy smokes does it get to bouncing from side to side and has almost cost me the truck and probably my life... With that being said, I upgraded to QA1 "SINGLE" 18 way adjustable rear shocks, and they really are not any better than the factory ones I just took off, I had a different shop re-align my truck and they claim that I did not need a camber adjustment kit, but I can clearly see the camber is still off, but whatever adjustment they made to the front alignment raised the front of my truck back up 1/4-1/2".
I have not upgraded the front shocks, and just have not had the money to get the Hellwig sway bars, but there is a post I was reading on here the other day that specifies which QA1 shocks will work with your application. I do remember reading that if yours is a 4x4 then you need to get the illicit no cut brackets(ALMOST 100% POSITIVE), my QA1's mounted just fine without relocating anything, but mine is 2wd.