Yeah, it's not going to get hot really, I can drive for an hour, make a pass on the track and touch the intake cause it isn't hot. On the Mac CAI, there would have been 2 holes on the tube before the throttle body. One is for the IAT sensor which is on the 99-00 and some 01's, but mid-01 to 04, that sensor is included somewhere else, so on those cars the hole has to be plugged up. The other hole is for the PCV system, it's a tube that goes from the intake to the passenger cylinder head and flows clean air through the crankcase. That system is on all cars so make sure that is plugged in.