ORIGINAL: 2000GT4.6

Not having acooler is not going to shorten the life of his shortblock. The only thing an intercooler does is lower inlet temperatures so you can run more timing without detonation. Unless your being stupid and trying to run full timing with no cooler your fine. you will also need to relocate the IAT sensor so it reads after blower air temperature and then program the car (via tune) to pull timing as IAT rises. A non intercooled car will last just as long as a I/C car, assuming they are both tuned correctly. The i/c car will obviously make more power, but with the proper tune it is no more "safe" than a non i/c car.

Saying that it will add "20 percent" is just incorrect. There is not a formula that will tell you how much more power you can get out of it, as there are simply too many different factors to take into account (ambient temps, boost level, and tuning skill just for three)

So far as the intercooler later on, I see no reason why its not a bolton thing. Unless I am remebering wrong you can simply order a k/b intercooler and put it on... and as the kb replaces the intake manifold there would be no reason to buy another intake.