I have been working on a blitz FMIC for a WRX. It is an extremely latge intercooler almost rediculously so. we are 99% done with the install. The piping fit well. We needed to add a large coupler to massage it a little, but thats pretty much it. Most of the lower bumperbeam is gone, but we were able to retain the fog lights.
don't listen to people that tell you you can't retain yours, if you put the FM piping in the lower part of the bumper between the fog light plastic and the bottom of the bumper, it can be done without too much headache.
I'll post pics tonight when we reinstall the lights, etc.