easiest moroso, with the easy drain and good hardware. McM/C looks like overkill.

Moroso above lacks a return air feature, which may cause some very mimor confusion for the ecu. Whatever air goes to the crankcase doesn't return to the intake. This is good and bad. None of the nastiness in the vented/seperated air goes back into the engine. The old starquest system recirc'ed both vapor and oil, oil to the pan and vapor to the intake upstream of the turbo. This one does neither. There is a theory floating around the since the vapors cool in the tank, they also condense out some of the bad stuff boiled out, back into the oil. The Moroso lets you dump it overboard, and look for things like lots of water, gassy smell, etc., which can lead you to fixes ahead of catastrophe.