I'm getting disapointed when I take my explorer out for a nite on the town and after a few red light to red light sprints it gets sluggish. Time for an aftercooler. I can find the right aftercooler (air to air), but I want and estimate on how much it would be to plumb the pipe needed for my X. Also, someone said I'd have to reverse the direction of my supercharger if I used an Intercooler, would I have to do it with an aftercooler.