Hard to say for fitment...
It may be a setup where you put it where you think its best. The best place would be to replace the 'Turbo' pipe with the inline cooler, but you can only do this if you are not running an engine cover.
The other option possible, it that the 'V6' pipe can be rotated 120 degrees on its 3 bolt mount, so the cooler could be mounted to the left hand side (underneath the engine cover) of the engine and routed with silicone hose back into the intercooler.
Even the water rad for the cooler can be put in different positions. Because it is fan assisted, it could be mounted via brackets off the left hand rear bumper bar (the bar that comes from the rear subframe to the rear bumper area) and sucking up cold air from the floor. This makes running the pipe work simpler (but youd have to move the spare wheel..)
The other option is mouting the pre-rad at the front of the car in front of the rad, or to either side. The benefit of this is the extra cooling capability, and increased volume of water in the total system.
The problem is everybody's car is different so there is not one suitable option.
Cooling wise, if the engine was in the front of the car, would be the equivalent to having a large front mount intercooler. Chargecooling keeps the temps very stable and you should be seeing temperatures around 30-35 degrees. There is also less pressure drop from the inlet to the outlet of this unit than the standard intercooler, but I would still advise running both in series for maximum effect.
I try and design these products to be 'diy' but in some cases it is far easier for you to bring the car to me and I can do the hard work for you.