Maybe you need something like the EDM kit. I have a S4 and EDM sells a stage 1 kit, you get rear ARB only and a set of lowering springs. This is dial out the understeer. Though I have only noticed this on right angle turns, sweepers aint so bad. I dunno about the RS3.
As titled, I got s S4 and want something a little firmer on corners, the drop of 20-25mm is about right for me taking into account maybe a front lip in the future.
Has anyone tried these here, any feedback?