Cold-air intakes are among the most popular aftermarket upgrades for car enthusiasts. But do they really add horsepower, improve throttle response, and make your engine perform better? The answer depends on the system, the vehicle, and how you install it.
The basic idea is straightforward: an engine needs air to make power, and a cold-air intake helps it breathe more efficiently by supplying cooler air through a less restrictive intake system. However, the real-world benefits are not always as dramatic as aftermarket advertisements might suggest.