How many have NOT changed IMS bearing on their 1997-2000 Boxster?

[Perfectlap]

Originally Posted by ProjectM96

2000 2.7L with 94,400 miles. Original IMS. I do my own oil changes and I see no evidence of IMS failure in oil filter or magnetic oil drain plug. So I am confident it will never happen.

A failed IMSB will generally only leave evidence as it's actually failing. So while checking the filter for cracked peppercorn sized fragments is a good practice to keep, it's not an early warning device. More like morning after pill. That's what the LNE Guardian is for. Otherwise you have to be lucky enough to be checking your oil filter at exactly the right time. It could easily fail in between oil changes with no warning whatsoever.

Also, with a 2000 you don't know if you have the more robust dual row bearing or the single row until you crack it open. And from my understanding Porsche weren't consistent about who got what in 2000.