What did you do with/to your Boxster today?

[Lew]

What I did today other than polishing my exhaust tips was to try and find the rattle I hear when shutting down the engine. I jacked the car from the rear and used my rubber hammer softly banging around on the muffler, the cats, and their heat shields, etc. I was not able to hear or see anything loose that would be making this noise. I first though something had broke loose inside the muffler. I might add I hear it sometime and sometimes I don't. It seems when back from a drive and everything is hot. Got me stumped!