I find that it produces just as much heat as the turbo...

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If it was hot because of the pressure coming out of it would then hurt performance since that pressure is then pushed thru the IC tube and into the motor.

It mainly draws air out of the crankcase and into the intake tube in front of the turbo, but it's not a lot of air.

The best thing would be to run a new line away from the turbo, and have it go to an oil separator.

That way you'll have cooler and oil-free air.

Your oil temps are around 230-250 deg while your exhaust pipe is going to be much hotter then that. It would be better to wrap that oil pipe to keep the heat from the exhaust manifold from heating it up. I would do that on my car but use a catch can so I dont have to worry about it.

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If you use a breather/catch can, then no, you won't need it, but if you use an oil separator setup (no outside vent) then you will need it.

IMHO, the oil separator is the best way to go, since a breather will act as a vacuum leak under part throttle conditions.