2wd cooling system :

1 top of radiator to thermostat housing
2 bottom of radiator to water pump
3 bottom radiator hose T piece (in hose) to header tank
4 water pump 16mm hose to heater matrix
5 heater matrix to modine (oil cooler under oil filter)
6 modine towards the rear of the cylinder head (inlet manifold side) (separate bolt-on piece of ali with also containing water temp sender)
7 thermostat housing 8mm hose to turbo water feed (closest to head)
8 turbo to header tank

You can use the 2wd loom with a L1, L6 or L8 ECU (or even a P8) (but with a L8 or P8, you need to swap a couple of wires around)

If you get a L8 ECU, you also need a PF09 throttle position sensor (TPS)