IMS Bearing Question
 

I have a '98 Boxster with around 36K miles. In '11, the original owner preemptively replaced the IMS bearing with an LN Engineering version, along with the RMS. At the time it had 27K miles on it.

I assume this is the dual-row bearing, which I believe according to LN engineering has a 6 year / 75K service life. At the moment, the car has barely gone 10K miles, but it's 2 years past the indicated service life.

Is this something to be concerned with?

Nope, nothing to worry about.