Just sharing this vid.....Seb @ Specialty Z just tuned a Stillen SC'd 370Z over the weekend...this car supposedly has the Frozenboost Heat Exchanger and reached intake air temps of 200*F on a dyno pass. According to Seb the fluid in the reservoir was cool to the touch, so there is obviously inefficiency elsewhere. Supports the argument that the intake plenum is too small to cool the air.
Ive heard that typically TT kits have AIT's of around 120-130 max on a hot day.