AEM (30-3306) V2 Water/Methanol Injection HD Controller Kit with Internal MAP Sensor Legal in California only for racing vehicles which may never be used upon a highway AEM strongly recommends that users never exceed a 50 percent methanol concentration when using any AEM Water Methanol system or component Methanol is a toxic and highly flammable chemical; 100 percent Methanol ignites easily and burns vigorously with an almost undetectable flame