If your Boxster was involved in an engine replacement

[Laflamme02]

Originally Posted by JFP in PA

A Porsche factory reman engine will bear either "AT" or "X" in its serial number.

Does anyone know if engines replaced by the factory (in 2007) had an upgraded IMS bearing to prevent failure or was it just a replacement with another engine that is prone to failure?

I'm looking at a 2004 Anniversary that had the engine replaced in 2007. I was told that it had an updated IMS from the gentleman selling it but two different dealers don't think that that is the case.