People seem to be missing the Point...
Look at this Image. Look at the Variance ( or the amount of temperature rise over the dyno pull) You can see the stock IC starting to heatsoak as on the last pull the Intake Temperature rose 60 degree's. Now look at the VK IC, less than 6 degree's of temperature rise consistently. Colder Air = Denser Air = More Power = Less Strain on the Turbo's = More Reliability/Repeatability