Intercooler

Front-mounted air-to-air intercooler
Top-mounted air-to-liquid intercooler (the silver cuboid-shaped part) on a BMW S55 turbocharged engine

An intercooler is a heat exchanger used to cool a gas after compression.[1] Often found in turbocharged engines, intercoolers are also used in air compressors, air conditioners, refrigeration and gas turbines.

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