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 ...

Cold air is good. Hot air is bad. Every gearhead, young and old, is familiar with this line of thinking. We buy hoodscoops, cold-air intakes, and all other manner of contraptions to help feed our ...

Water injection, sometimes used in conjunction with methanol, is a time-honored method of reducing intake temperatures, ...

For decades, many of us have followed the same practice with project cars. Typically, the first parts we pick up are an intake and exhaust. However, performance software became a hugely popular mod, ...

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?