I have plans to improve the braking of mine,
I have a set of these that I can take off my other car that I'm thinking I might fit to the S4,
RS6 390mm discs and calipers
anyone know if its been done, not a problem really, as no one had fitted them to the insignia before I did,
but always good to get the experience of others, or what has anyone else done to improve their ability to stop?