I have a stock exhaust with new aftermarket cats that came off a 530i automatic. Should fit a 540i auto as well. I don't think it will fit manual cars due to differences in trannys/mounting hardware. O2 sensors pictured are NOT included. $300 obo.
BTW, if anyone is wondering why I posted the same ad three times, I was getting the "internal server error" message when attemping to submit the thread. I guess it was going through despite the message. I've contacted a mod to request a clean-up.