I put a T off the oil sending unit port and I drilled a hole for the oil drain into the passenger valve cover. Welded an adapter fitting into the valve cover with a 90 going to the block then a 90 under the turbo with a 5/8" line going down into it.

 

Skylar I have a couple. I put my ecu in an amount can in the spare tire well so the majority of my wires are in the engine bay. Except for power wires, fp power, tach feed and switched wires.

here's the new cts. You can kind of see the oil drain on the back of the valve cover.

Right on. Scrolled through your build thread. That things awesome man ! Whats that green wire running from the ecu to the battery for ?

It's for the power to the purge and egr solenoids. I put 34 ohm resistors in place of them. Just haven't cleaned everything up yet.