There’s hardly anything on a truck that’s simpler than its air-intake system. And not too many things – maybe only your right foot – that can have as much effect on fuel economy. A diesel engine needs ...

We may receive a commission on purchases made from links. Over the last century or so, the auto industry has changed in a myriad of incredible ways. It's mind-boggling to think of just how far we've ...

Why performance air intakes might be a great, low-cost investment if you’re looking for more power. Why are aftermarket air intake systems so popular? A related question might be, why replace the ...

Among internal combustion engines, diesel engines boast excellent thermal efficiency and can burn fuel that is not highly refined. They use a compression ignition system in which intake air is ...

Using a "clean sheet" approach may not be the quickest way to solve a problem, but it often results in a better solution. That's the philosophy used by the folks at Holley Performance Products when ...

The purpose of a cold-air intake is to find cold air in an otherwise hot under-hood environment. It can do this by drawing air from above the hood, under the front bumper or a spot inside the engine ...

A K&N cold-air intake can be worth adding to your vehicle, and it may provide moderate horsepower gains if you install it ...