✔ 最佳答案
Intercooler is a heat transfer product,
it let the heat flow out from the engine,
in order to archeive lower engine temperature.
It normally used in turbocharged cars,
because they are very hot during turbocharger is in use
If your car does not have a turbo, i do not recommend you to install
although it can reduce the fuel consumption significantly, but it does not worth it.
Fuel consumption can decrease about 10 to 20%
It is not cheap, i think in HK is around $2000 to $5000
depends on quality. Not so sure , due to live in overseas
參考: An automobile engineer worked in ZA