The AEM Electronics Water/Methanol Injection Kit With HD Controller is suitable for forced-induction HD & turbo diesel applications. These kits allow you to increase boost pressure and enhance combustion efficiency. They effectively lower engine inlet air temperatures, suppress harmful detonation and reduce carbon deposits left by a diesel's EGR system, whilst increasing engine power by up to 20%.Allows higher boost and increased ignition advance for better powerPrevents engine damaging pre-ignitionComprehensive kit with all wiring and plumbingA Fluid level sensor alerts when the tank is running low or if there is an errorThis kit uses a Boost Dependent progressive type, controller. This means that fluid will be injected in proportion to the amount of boost that is detected by the internal Mass Air Pressure (MAP) sensor. In other words, more boost equals more fluid. The controller housing has a moulded-in barbed nipple to accept a boost hose and a wiring legend on the back for easy ins