Part two of the July Excellence article on the IMS upgrade by this forum's sponsor (Flat6) is a MUST read. There's pretty technical explanation on how to extract the old IMS and install the new aftermarket unit for those of you inclined to take a whack at it yourselves or if you wish to know how your indy will do it.
And something I hadn't seen before, pulling apart (as in cutting it open) the oil filter and what to look for, or should I say what you should NOT be seeing. Some of you who bought your Boxsters without service records should definintely check this...and I wouldn't wait until the next oil change to do it either. If you're sitting on a time bomb, bumping up your next oil change seems well worth it to see what's going on down there.