Injecting water and/or methanol into a diesel engine (gas, too) has been around for more than 75 years, but it didn't really have a good, practical application until WWII, when supercharged and ...

What would you say if we told you there was a product that could make more power, lower harmful emissions, and increase fuel economy, all at the same time? You would probably call us crazy, and you ...

We're sure you've heard the stories about how nitrous oxide was first pioneered on German fighter planes during World War II--the Focke-Wulf and Messerschmitt interceptors used nitrous in conjunction ...

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 ...

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 ...