On topic of death wobble, I experienced this several months ago. Was bad, dangerous. For what is it worth, I had zero issue with a wobble prior to having the dealer install the fox AGA 1001, had multiple wobble events almost immediately after (random though... like 70 miles after install and driving at speed for some time... and certainly dangerous driving down highway), and once I had the dealer go back to stock, I've not had an issue since.
I'm in the US, have 20K miles on vehicle.
So, about 19,750 with stock... all good. 250 miles with AGA 1001... for some reason... awful.
Glad others are happy w/ fox as it sounds like it has been issue free for them.
For others dealing with wobble, consider going back to stock IMO.