I'm not sure it's a stats kind of thing like oil temps, it's a case of being high in the rev range and not getting adequate oil for a split second. Potentially every lap on a particular corner. I don't have any oil pressure logs showing dips, but oil starvation is definitely a real thing for the k20.
For £200 and a few hours under the car, I personally think it's a no brainer.
Think about the banking at Rockingham for example, flat chat, max revs in all gears, desperately trying to catch that turbo car you've spent the whole lap gaining on through the infield, sustained g at whatever angle the banking is, that's a lot for the oil system to cope with.. Or pouhon at Spa.. on the second part, still under as much lateral load as I can put into it, I'm redline in 4th and flat.
Nobody thinks they hang about on track, and I don't know how much load you're able to generate, but peace of mind on circuit is a wonderful thing.