yeah, but i dont think it will be generating much more heat at idle than a standard turbo, if any (correct me if im wrong). i tend to think it would be a combination of things like sucking hot air thru the pod (as skyper said), no air flow through SMIC at stand still, tune etc...
it would be cheaper with a whole lot less headaches to work through these things (maybe not tuning) first, before adding the w2a.