Water injection has been around forever, but after going in and out of fashion for decades, it's gaining a firm foothold in the performance-car world. A big reason is Matt Snow at Snow Performance is ...

It's a rare thing when a magazine tests the exact same product twice, but that's exactly what we're doing here. Back in our Aug. '11 issue ["Hooked On Meth"], we installed and dyno tested a Snow ...

The concept is straight out of a high school physics class: The colder you make your intake charge, the denser, and therefore more powerful, your intake charge becomes. With more atmosphere shoved ...

Pushing the limits is in the nature of every gearhead. How much cam can you run? How big of a carb can you get away with? How much compression will pump gas hold? Those aren't just simple questions ...