[Richard L]

If you have a choice of using an intercooler, it is the best solution. Not every car uses intercooler especially supercharged ones.

Due to the high vacuum in the inlet tract, it is not always possible to fit an remote (not bolted onto the engine) intercooler unless solid induction pipe is used.

For big power application, the intercooler can be restrictive - a car has only a certain amount of frontal area - 1000 bhp engine requires 10 times the frontal area n- unfortunately the car doesn't get any bigger proportional to power.