All “factory rebuilt” Porsche engines sold after 1/2006 contains the “final solution” oversized IMS bearing, which has also demonstrated that it still can fail. I'm not really sure this is the type of "revised part" you were looking for. Biggest issue with this engine is that this large diameter IMS cannot be removed without totally disassembling the engine, making an update very expensive at a minimum.
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“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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