Anyone help please?

I'm changing over to full 4X4 cooling system but I want to run a turbo cooler and a swirlpot also. I have the water pump, thermostat and thermostat housing (front and back).

The spec-r one seems to have 2 big outlets and 1 small outlet:




but the bailey one has 2 small outlets and 1 big outlet:





Which 1 is best and is there a plumbing diagram someone can point me in the right direction with please? Spec-r one is nice but would have it in black and it's pricey!

Cheers lads.

Philip.