HDT-JDQSX Plug and Play Power tuner will increase the engine HP and TQ up to 125hp and features 3 different adjustable settings with easy to use push button adjustment process. Simply connect the unit to the injector harness connection, attach the power / ground lead to the alternator as shown above, secure the unit away from moving parts and excessive heat/water sources and you are ready to get to work! Start saving TIME and FUEL with additional HP and fuel savings up to 12%. Please specify year and model when ordering.