I'm all for the oil cooler.

The oil cooler is not going to bring the oil down to "cold start temps". It's just gonna give it a few more seconds before it makes another cycle throught he already hot motor. For the amount of heat that the turbo puts off & the hell that the oil is put through when it goes through the turbo, eventually once it's all cycled through once, it's just going ot continue to get hotter & hotter.. the oil cooler will more or less help it maintaine a slightly cooler temp.

I just don't see the oil cooling to a dangerously cold temp when the engine already has the oil hot.. Unless your a jack ass & purge nitrous to your oil cooler! lol