As technology has advanced, so has the ability to make big horsepower with relatively small-displacement engines. With superchargers and turbochargers becoming more popular, people are achieving power ...

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 ...