all depends on what stage of tune you want to goto ..
i ran a charge cooler for a while on the sII at 15psi .. but once the power was upped to 24psi it stood no chance if your looking to run big power you need a big intercooler .. but with that can bring cooling issues due to it blocking off the majority of the radiator ...
but there are ways of sorting that out with a twin fan setup, and thermostat modifications and fit a nice big ally rad