This AEM V2 5 Gallon Diesel Water/Methanol Injection Kit is perfect for racers with forced induction (turbocharged or supercharged) gas - powered race engines. It helps you get more power out of your engine without using high - octane fuel. The kit comes in a 5 - gallon size, which is great for longer races. Whether you're on the track or preparing for a big race, this kit can give you the edge you need.