[mikefocke]

If you go back to the lawsuit and the percentage of failures Porsche admitted to, then add that there may have been an equal number they didn't know about, add in the fact that the cars are now lots older than they were then ... now what do you think the odds are. And more what do you lose if it does start to go. Price an engine.

OTOH, last I heard there were 28 points of failure identified by one shop. So the IMS is only one cause but the failure can exhibit in multiple ways and only some caused by the IMS.

As for the opinion of the dealer, they only want to stick with Porsche supplied parts for liability reasons. They don't want to deal with a part a customer brings in to them lest it because an argument of failed part or improper installation..