I have the Vortech Aftercooler which works great at the track (if and when I go), but I'm making too much power right now and it's becoming more of a restriction on the motor, so I'm going to be selling my Aftercooler here soon. As of now I'm looking for an air to air Intercooler as well.
I've checked around, and depending on what you need specifically is going to tell you what size cooler you need to get.
In my case, I'm looking at going from a T Trim to a JT Trim Blower, so I need an Intercooler that will flow at least 1500cfm. The Procharger and the even the Treadstone will work. I was a little skeptical of getting the Treadstone mainly due to the low cost and I was afraid I was giving up quality and performance, but a lot of members on another forum have said that it works great and they've had no problems with it.