I know I'm way behind everybody here but I have to put my two cents in after reading some of the post. To brianzeke007: I have a Vortech v2 S1 with aftercooler in my 99 GT. The engine is stock and using Vortech's tune. I think it is a very good set up and would do it all over again. It's reliable, makes good power and you would never know you had a blower under the hood until you hit the loud petal of course, and maybe a little whistle at idle. he, he, he. To avexhype: You have all the luck, not only do you have 75 to 90 rwhp more than I do with vertually the same set up (minus TB/plenum) but you only paid $2700 dollars for it.