Accepting all the relevant information above, there are two other points to make:
1. Not all inter-coolers are created equal. There are two basic designs - Bar and Plate and Tube and Fin types. You may seek to replace your stock design with an alternative that not only has greater internal volume but also greater cooling capability, but remember this may not be the same as cooling efficiency (i.e. you may get a cooler that reduces your temps by more degrees but it is not as efficient in % terms at doing so as another cooler).
2. Generally speaking, a TMIC is much simpler to fit than an FMIC with the longer and more convoluted plumbing that necessitates removal of the front bumper and often, deletion of the existing air-box, resonator and filter, if stock.
A good FMIC is way preferable to a comparable TMIC if you want maximum cooling and are prepared to pay the price and put up with the fiddle of getting it all set up nicely. It can come with some headaches, such as dealing with the much larger volume of air being moved around. It is mounted way out in front in the cleanest air possible and gets the benefit of the airflow first. The numbers will come closer together on a consistent open road run, but in traffic, the FMIC generally keeps its cool better, as any relevant comparison of Boost Air Temps will prove this, against any TMIC that you can sensibly fit in your engine bay. KMNH001's comments are perfectly valid too, and I even note that there is potential for the longer FMIC plumbing to expose induction air to engine bay temps, but generally the core is not normally subject to such high temps as with a TMIC. One might say that TMIC's are really mounted in the worst possible place for a device intended to provide a cooling interface, although in the case of the MPS's, the ram air from the bonnet scoops helps to offset this when running.
CP_e Standback & PNP; CP_e 3" SS Downpipe; Corksport FMIC with Top-mount K&N filter & OEM Ram CAI; Turbosmart BOV; Dashhawk; Prosport Boost Guage; JBR solid shift bushes; DBA 4000 Wiper-Slot front rotors; Hawk Ferro-Carbon HPS Street front brake pads (@ 69,000km); Sumitomo HTRZIII's in 225/45 x 18