Great review/test. I still think my Greddy makes more power than all of them.
The Greddy sticker is the power maker of course.
The only reason I chose the Greddy over the Injen was do to Injen still making a metal intake. With heat soke being a problem in the long runs I prefer the plastic.
I used to to do Beta testing for Cobb Tuning and seeing the differance in AFR's and dyno numbers as the intake got hot on a turbo car I am really sold on cold air with an isolated filter.(cold air box)