Just looking around, ran across these, cheap at $590 shipped with pads. Slotted or drilled. Searched for a few random reviews, none RS6, but were ok. If someone really needed to be on the cheap side, thoughts?

Edit; all I can figure is their pricing is screwed up as both Amazon and R1 site have rears priced higher than fronts; basically flipped pricing.

http://www.amazon.com/R1-Concepts-KP...3%3Aaudi%3Ars6