To be honest i would not bother with a FMIC unless you go for a small single turbo, the Stock IC as long as it’s in good condition is fine for BPU levels which sounds like what you are planning to do.
If your IC has had it (lost allot of fins etc) then i would look at getting a replacement one anyway, the Side mount Intercoolers that Chris Wilson Sell are very popular on here
But for the love of god don’t buy the cheapo intercoolers on eBay, these are in some cases perform worse than the stock intercooler, if you are to buy a Front mount intercooler then look at, Blitz, or Greddy, yes they are expensive but there is a reason for that, also if you do decide to go for a Front mount make sure you duct it properly otherwise it wont benefit you at all.
Here is a little bit of info on ducting and why you should do it if you are looking at fitting a Front mount unit.
http://www.mkivsupra.net/vbb/attachment.php?attachmentid=82056&d=1221568108