Air filters are one of the easiest and quickest components to swap out for an aftermarket part, and plenty of companies claim their design will increase horsepower, torque, and improve acceleration.

One piece of car maintenance that often gets overlooked is changing the air filter. Owning a truly thankless job, this piece of equipment is responsible for keeping the air entering your car's engine ...

Performance air filters are billed as a cheap and easy way to add horsepower to your car, but do they really work? Engineering Explained wanted to find out so they pitted standard OEM filters against ...

If you've ever been to an auto parts store, you've probably seen air filter boxes that claim extra power and more torque over the factory filter. But being so cheap and easy to install, it's hard to ...

While the OEMs overwhelmingly opt for paper air filters, cotton gauze filters are a staple of aftermarket induction systems. So what makes the cotton gauze medium so much more conducive to airflow?