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 ...

Two of the most common questions diesel owners ask are: "How do I lower my exhaust gas temperature (EGT)?" and "How do I make more power?" Well, we're here to answer both of those questions in one ...

There are many ways to add power to your vehicle. It ranges from the cost-efficient modifications you can make to the more expensive engine and supercharging upgrades your mechanic will have to ...