Its all about temps and keeping them cool as possible. On my Vr-T I run a Cryo cooler(nos,Co2) on my intercooler so in the hot days I can spray the the intercooler if its 50 outside the cooler will cool it down(freeze up the front of the intercooler as if it where 20 outside)-thus more Hp) The Awic kit is more efficient plus the componets are aluminium to dispence heat faster and a shorter boost track with lower psi drop.