A performance enhancement component frequently installed in the third generation (NC) Mazda MX-5, it facilitates the introduction of cooler ambient air into the engine’s combustion chamber. This system typically replaces the factory air box and intake tubing with a less restrictive design, often featuring a heat shield to further isolate the intake air from engine bay temperatures. The anticipated outcome is an increased oxygen concentration within the air-fuel mixture.
The significance of such a modification lies in its potential to augment engine power and improve throttle response. By supplying a denser air charge, the engine can potentially burn more fuel, resulting in a modest horsepower gain. Historically, enthusiasts have employed similar modifications to naturally aspirated engines to unlock latent performance capabilities and optimize the engine’s operational efficiency.