Restore or upgrade your GM Vortec engine's fuel injector wiring with the Michigan Motorsports Delphi Multec Fuel Injector Connector Pigtail Harness. Designed for use with GM engines that run Delphi Multec mini injectors—such as the 4.8L, 5.3L, and 6.0L LQ4 and LQ9 platforms—this harness eliminates weak or cracked connectors that can disrupt injector function. Offered both individually and in a convenient set of four, this is a perfect solution whether you're replacing a single pigtail or rewiring all injectors in a bank. Installation is plug-and-play, with no cutting or splicing required. Constructed from high-temp materials to resist heat and vibration, and finished with OEM-style connectors to ensure factory-like fitment and reliability.