I have Pilot Sport PS2s on my B5 S4 that were installed I think in 2010. I don't drive the car, but I can tell you when I look, I don't see dry rot. I will need to replace them, but I have things to do before I can really drive it like registering it again, then trying to pass inspection and then it will be fair game. Lots of other repairs needed to like a blown turbo, I think possibly bad cats, UCAs are shot all around, front bumper is cracked and god knows what else...