I here ya'. No my mind is not 100% made up. If more people with similar Vortech/Paxton kits are making more power, or if there is a inherent design flaw with the Procharger, then I can be easily persuaded to choose a different supercharger.
I really wanted a Vortech as that is what I had on my 03 GT (and LOVED it). But when I saw pictures of their kit I was like
when I saw the intake. So I went to AFM website to see what typ of power pipe they were offering for the 05+ and they were $600+. Well $250 but you have to buy their DBX which make is $600. No thanks. That is when I started looking at Procharger.
Edit: If you made 518 through the stock Vortech intake, I would bet there is a fair amount of power to be had by upgrading your intake!!!!