Okay. They're really not sway bars, but anti-roll bars. Shocks/dampeners, to-ma-to/to-mah-to.
Everybody understands that these simple devices resist body roll from side to side, but that they have an exotic X-effect is rarely a subject.
The front bar, for instance, throws weight to the rear, and the rear bar throws weight to the front, in an X-pattern. Left front wheel to right rear wheel, etc.
If a front wheel is lifting right off the road in a tight, high-G corner, you "push" it back down by increasing the rear roll stiffness. And vice versa.
To be honest, I don't recall all the Audi tricks, but with that bunch anything was possible.
In my experience, most VW people use sway bars that are too heavy. Of course, a 22mm bar bent a certain way might act the same as a 19mm bar bent another way. And let's don't even get started on tuning with adjustable end links.
but havent understand if that helps or not the car.... (english are not my main language )