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					Originally Posted by dalealan2001
					
				 "While the LN bearing hasn't been proven better than the factory part by a true measure of "field experience" yet, even if it was only marginally better, the fact that you're replacing the original bearing, with X many years across Y many miles of wear on it, with a new part, is still a lot better than doing nothing. "
 Why would I be replacing the IMS bearing? Is it in the maintenance manual as  preventative care?
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It's not in the maintenance book as preventative care, but perhaps it should be.  Seems like lately almost all the engine failures are from the IMS bearing failing.  It's just not a good design on Porsche's behalf.