Like HowStuffWorks on Facebook!

5 Engine Modifications to Improve Performance


3
Cold Air Intake Kit

Although it might seem like a small thing, the temperature of the air can affect the efficiency of your car. A cold air intake kit is an aftermarket system that brings cool air into the internal combustion engine. Normally, a car regulates the temperature of air as it enters the engine, providing warm air when the engine is cold, and cold air when the engine is warm. Cold air intake kits, however, can lead to higher performance and engine efficiency, based on the idea that colder air is denser than warm air, which means that it contains more of that necessary oxygen for a more dynamic combustion in the engine.


More to Explore