If i buy the stage one trubo kit, how hard will it be to add the intercooler on it. And if i was to purchase the stage one kit wouldn't that be a lot of heat without the intercooler?

with the boost #s you are looking at with the stage 1, you dont really need the IC. but if you turn the boost up thats when the IC will need to come into play.

how hard will it be to put one one.