I have a B6 S4 Avant. I am about to install Bilstein PSS9 coilovers and H&R sways. While the suspension is taken apart, I was thinking it might be good to add adjustable camber plates for track days. Do they exist for my car? Does anyone have any experience with them?

There are no camber plates for the B6 chassis, only adjustable arms.
We have these in stock, and will fix any camber related issues you might have.<ul><li><a href="http://www.purems.com/products/product.php?II=996">CPP Adjustable Arms</a></li></ul>