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Northwest Indiana here. Just took mine into get AOS changed. I'd throw that in the replacement ring with the water pump. If you don't already have a great indy mechanic I highly recommend Kurts German Autowerks in Homer Glen. Fantastic mechanic incredibly knowledgeable and loves Porsches. Also doesn't want to screw anyone over. I had three highly recommended Indies quote me 750 for just an aos change. Kurt was 366.
As far as most ims failures being pre 2000, the best bearing was the double row bearing found on earlier cars. Most 01s and 02-05 my cars have the weaker single row bearing. You van do a lot for your bearing by changing your oil frequently though.
Last edited by jdraupp; 12-14-2013 at 02:40 AM.
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