I got the unit and got it installed at Autothority Pitstop in DC. It cost around 800.00, just parts, not installation. Could not tell about the butt dyno with just the intake, because they also chipped the car at the same time. As a result the butt and the Dynajet dyno both said it was quicker, I think it was putting out in the high 190's hp to the wheels range.
That being said, I suspect if you only installed the intake, you would get the sensation that the car was faster because of all the cool sounds it makes. I know folks talk a lot about it, but if your car sounds fast, it feels fast. BTW, the folks at Autothority Pitstop did some more tuning of the chip they put in the car a few weeks ago.
I plan on having a dyno pull done this monday. So far, the best I have gotten so far was just a little over 200 hp to the wheels. I have found the Dynojet dyno that I have been using (Performance Autosport in Richmond, VA), may not be accurate, but it seems very consistant and realistic with the nature of the mods done.
Ed
