Engines are nothing more than elaborate air pumps, and as such they rely on a steady supply of air and fuel. The fuel side is fairly straightforward, but often times an engine's potential is choked ...

While many air-intake systems are available for the popular 4.0L-equipped Jeep Wrangler, none offers the unique design of the Spectre Performance intake system. The Spectre kit offers an ...

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 ...