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 ...

Injecting water methanol into the intake of a diesel engine is a means to increasing performance, reducing exhaust gas temperature (EGT), and can also increase full economy. Snow Performance has been ...

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 ...