Hi Jason,
I bought a blitz LM Type intercooler for my 32, which can support up to 600hp applications.
It came as a kit for $1,600 with all piping, hoses, clamps and brackets. Only took an hour or so to install. One of the pipes goes under the cooler and meets with the other one in the stock position.
Im my opinion this setup is good rather than the pipe going in the engine bay as its avoiding the engine heat. Although I don't think its makes much of a difference, it mainly comes down to personal prefference.
Hope that helps
Take it easy
Mark