I have the P-1sc from ATI and love it. Has 3stage intercooler(a must). I run only 5 pounds of boost but has potential to 32 psi(i think). Good customer service

 

The best part about the Procharger kits is they come with intercoolers. The benefits of self oiling are debatable, but some people (inluding myself) like the idea of not punching holes in our oil pans. Especially if the car in not to remain S/C for ever. Both are very reliable and the biggest thing you will get here is opinions. As far as power potential, from what I've been told/read P-1sc ~ S-trim < D-1sc < T-trim.

 

I just read that test report, I'll go Vortech anyday.