LS3 Wire Harness

The LS3 wire harness is ready for your consumption. Like all of our Pro Series Harnesses, they have been tested in the field, before we sell the finished product to you. One of many attractions of the LS3 is the integration of the throttle actuator controller (TAC) new location, inside the ECM computer. The Pro Series LS3, wire harness, is wired for a standard 6 Speed we also offer 4L65E automatic. For you automatic users, please be aware, GM has made a separate controller ( ECM )for the automatic Trans to shift, for a true LS3 fly-by-wire throttle engine with a 4L65E you will be running 2 computers. The LS3 is specific to 2007-08 electronics . As well as the capability of creating more power than the LS2, with mods. This package price includes the computer, the program loaded for standard shift car, Ho2 Sensors, O2 bungs, MAF Sensor, Pedal and a 12 circuit Delphi fuse box. All other options listed below are additional. This harness package will NOT run the 6L80E or ANY paddle shifted Operating System this is not available at this time. Whats-in-it for me Note: The best part of this package is you get ALL of the components needed to run your LS3 engine All tech and service is provided by the main wire lab in San Antonio, TX. Our world renowned - Fanatical Tech Help-is handled by in-house Engineering and Tech staff.

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ALL EPA APPROVED WIRE HARNESSES COME WITH: