My 2002 S had two IMS failures in under 50K...One of my work buddies had a 2.7 that had an IMS failure at 30k.  My neighbor had a 2000 with an IMS failure (don't recall the mileage).
When I got my 2001 S, I didn't even think twice about it - I just got it done.  Spending 3k was a lot cheaper than spending 16k.
Many people here feel that the ims failure is overhyped.  When I went to Jake Raby's shop in Georgia a few years ago, I was stunned at the dead engines with IMS failures he had collecting dust. 
I would personally never own a 986 without the IMS upgrade.
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					Originally Posted by  Pastor T
					 
				 
				I am the 3rd owner of a 2000 Boxster, 2.7, 98k on car, 1st owner had engine replaced at 40k by Porsche due to "internal engine failure". "Reconditioned" engine installed.  (engine # M962265Y15482) Do the math; 58k on the engine.  The dealer cannot give me much more info than I have on the invoice due to it being in September 2003.  From these dates and engine number can anyone tell me what kind of IMS I have.  (Single, double, upgraded or what).  As far as I can tell it has the orig clutch, PP, FW and throw out bearing.  It is currently in my indy shop for noise related to TO bearing.  I am having the C, PP, TO Bearing replaced today.  I change my oil every 5k and do a complete inspection of my filter.  I have not found a single speck in three changes.  Last change I installed a magnetic drain plug.  No chips only very fine metallic paste.  My indy is NOT recommending changing the IMS since it is not showing any problems.  I called Porsche, they said the same thing.  I have read everything I can find and my my mind is numb.  I am 64 years old, drive very aggressively, try to keep the revs above 3K and love my car.  Any advice? 
			
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