In theory, you should have them pre-IC so that you do not cool intake charge just to then vent it; the idea being to save the IC from unnecessary heat soak. Chances are that the real world difference would be marginal if not undetectable, though.
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Car Sold! Pleasure being a part of the Z community. 
New ride: 2015 GT-R - 647 WHP / 641 WTQ (e85) & 543 WHP / 519 WTQ (91)
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