Why is this kit better than the Aquamist 1S?
This setup has many advantages over the Aquamist kit, and is designed for ease of use, effectiveness, and longevity. Since an accumulator is used, the pump runs very infrequently leading to longer pump life. In the unlikely event that the pump does fail, an inexpensive rebuild kit is available. The pump has a higher flow rating and consequently the setup is easily expandable – for example adding additional water injection nozzles, intercooler mister, brake, and radiator mister etc.. The Aquamist pump can very quickly run out of flow if more nozzles are added; the pump included with this kit has nearly 10 times the flow rating of the Aquamist pump. Since solenoids and an accumulator are used, high pressure is immediately available to the nozzle as soon as the solenoid opens (instant on – no waiting for the pump to build pressure). The dual nozzle setup provides better water flow control than the Aquamist 1S setup, and is still more affordable. See “How much better is the stage two kit”