no intercooler, none at all. i am putting together a water injection system first and ill work out a frontmount setup later. i was thinking of using a water to air intercooler and using my ac condenser as an aftercooler, hmmm. the turbo i am using is a 14b from a 1g. its a little small for our motors but it spools at 2500 rpm! and doesnt seem to run out of breath at high rpm at least at low boost. well like i said my car felt like a low 14 sec car (ask the mustang i beat the other day) and this is with my half burned up auto tranny and stock exhaust that is soon to be replaced. i have heard rumors of the 5spd dropping 2 sec off your 1/4 time so add that with a decent turbo setup and few other mods and i think you will achieve your goal of a 12-13 sec car. remember the 4g64 is just a bored and stroked 4g63 that has one cam and doesnt crankwalk. hope this helps