My 2012 Mark 6 Volkswagen gti has a NueSpeed Cold Air Intake system on it with a K&N Air Filter. It helps deliver more air for the turbocharged 2.0 liter which I have tuned to Stage 1+ using a Cobb ...

The air intake system in most cars involves a plastic airbox that houses a rectangular filter. No matter what car you have, l bet you can find cheap filters and expensive filters—so you get to decide ...

As hard-core diesel enthusiasts, most of us have the inherent desire to increase our trucks’ performance. While improving driveability is the simple goal for some owners, having an engine that makes ...

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 ...

If you're considering switching to a K&N cold-air intake, there are some things to consider first. Here's what to know about these mods and if they're worth it.

Regular readers will recall last month's testing of two Motordyne bolt-ons that successfully proved Helmholtz resonance can be used to increase exhaust gas scavenging and help your ride put out a few ...