Painless Performance 1999-2006 GM Gen III 4.8, 5.3 & 6.0L Harness Std. Length
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1999-2006 GM Gen III 4.8/5.3/6.0L EFI Harness - Mechanical TB
This harness is designed for the 1999-2006 4.8L, 5.3L, 6.0L mechanical throttle body engines using an LS1 / LS6 PCM with a 4L60E, 4L65E, 4L70E, 4L80E, 4L85E, or manual transmission. 2003-2006 Engines will require a mechanical throttle body to be installed. 2003-2006 engines which were originally flex fuel will also require Delphi Multec 2 (factory truck style) injectors to be installed. Harnesses do not include connections for the rear O2 sensors or fuel tank pressure sensor but are available separate. Included with this harness is a 10 circuit weatherproof fuse block and GM color coded wires with labels for easy installation.
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Painless has taken one of the most difficult aspects of a vehicle project and made it simple by offering complete wiring harnesses that are basically plug and play. They offer a number of different formats, from completely customizable to make/model specific. Painless also offers wiring solutions and switch panels for racing and street applications. When looking for superior quality, engineering & craftsmanship, Painless is the only sensible choice.
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