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This article's lead section may be too short to adequately summarize the key points. Please consider expanding the lead to provide an accessible overview of all important aspects of the article. (December 2022)

A turbocharger for a car engine

A supercharger (on top of a dark-grey inlet manifold) for a car engine

In an internal combustion engine, forced induction is where turbocharging or supercharging is used to increase the density of the intake air. Engines without forced induction are classified as naturally aspirated.^[1]

^ "How Forced Induction Works". www.gearpatrol.com. 23 September 2013. Archived from the original on 30 October 2023. Retrieved 3 December 2021.