Your alternator is designed to put out a specific voltage, generally 13.8 volts. The only problem is when there's a greater demand on the electrical system, such as a WOT blast, the alternator falls a little short. The V-Plus is designed to overcome voltage taper at WOT by stepping up the alternator voltage 2.2v. at 70% throttle. Result? More power to your fuel pump and ignition system. Unit plugs in, with no wires to cut or tap into. Includes hardware. NOTE: Your engine must have a ROUND TPS connector as seen in the illustration in the installation instructions, AND the late style Alternator Connector - 1998-2002.