The AEM Water/Methanol Injection Nozzle kit works with any 1/4" OD water/water injection tubing, and is typically used to add a second injector to an existing kit, but it can also be used as a replacement or upgrade part for nearly any water/methanol injection kit. WHY YOU WANT ONE AEM Water/Methanol injectors are CNC machined from 6061-T6 billet aluminum and then hard anodized in black and laser etched with the AEM logo. These new injectors also now come with an integrated check valve! The injector nozzle kit includes one new style injector, one of each sized nozzle (.0155, .0315 and .0630 sizes), a "T" fitting with quick connect ends and 48" of nylon hose which allows you to add a second injector to your water/methanol system quickly and easily. PRODUCT FEATURES Universal 1/4"OD size Check valve integrated into nozzle to prevent unintended fluid flow Includes 4" (48 inches) of tubing and "T" fitting One injector and three nozzles to cover a wide range of HP levels Legal in California only for racing vehicles which may never be used upon a highway. Note: FOR OPTIMUM RESULTS, ALL WATER/METHANOL INJECTION SYSTEMS AND GAUGES SHOULD BE RUN WITH AN AEM INLINE FILTER (AEM PART #30-3003) Important Safety Notice Regarding Methanol AEM strongly recommends that users never exceed a 50% methanol concentration when using any AEM Water Methanol system or component. All AEM Water/Meth injection systems and components (pump, lines, fittings, filter, flow sensor, tank, and nozzles) are 100% chemically compatible with methanol. However, for safety reasons we strongly recommend that users never use more than a 50% methanol concentration in our systems. Methanol is a toxic and highly flammable chemical. 100% Methanol ignites easily and burns vigorously with an almost undetectable flame. Methanol can be absorbed through the skin and even x-small amounts can cause blindness or even death. Using this fluid at high pressures, without dilution, in an under-hood environment with nylon lines and push-to-connect fittings is very unsafe. The performance advantages of using greater than 50% methanol concentrations are x-small, if they exist at all. However, the safety issues are very real and far out weigh any perceived benefit of running high concentrations of methanol. WARNING! Improper installation and/or adjustment of this product can result in major engine/vehicle damage. For technical assistance visit our forum at http://forum.aempower.com/forum/index.php or visit our dealer locator http://www.aemelectronics.com/dealer_locator.php to find a professional installer/tuner near you. Note: AEM holds no responsibility for any engine damage or personal injury that results from the misuse of this product, including but not limited to injury or death caused by the mishandling of methanol.