There are plenty of ways to boost an engine's power, and most of them, like turbo-charging, supercharging, or Nitrous Oxide injection are well known to automotive enthusiasts. But what if we told you ...

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 ...

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 ...

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 ...

As always, there are limitations to how much power can be added to any given combination of load and/or engine speed. Not only is there a limit to the amount of total fuel and power that can be added, ...

The idea of injecting an incompressible, incombustible liquid into an engine appears, upon initial consideration, like an inadvisable move. After all, those who have watched a driver tackle deep water ...

Arguably the coolest part of the BMW M4 GTS is its water-injection system, a production-car rarity. It was a big part of how BMW was able to turn up the standard M4's 3.0-liter twin-turbo inline-six ...

Hello David, a water-methanol injection (WMI) kit is designed for vehicles with forced induction systems, such as turbochargers or superchargers. This system injects a mixture of water and methanol ...

The idea of injecting an incompressible, incombustible liquid into an engine appears, upon initial consideration, like an inadvisable move. After all, those who have watched a driver tackle deep water ...

I know of a Toyota Vitz and a Subaru Forester that are equipped with water-methanol injection kits. Could you explain how these kits work, how they can be installed, and how much they might cost?