the two pipes are for the idle up when the thermo fan or maybe air conditioner kicks in. What i did when i wacked a pod in my twinky was move the idle up valve near to throttle body mounted on "custom" bracket then bolted to the firewall. I extended the wires and used one of those cheap little air filters,the ones for engine breathers, got mine from autobahn. Maybe a couple of hours work and it wasn't what i call difficult. If you need any photots i can do it but might take a while. My unlimited love to you all...................chris