Application2003-2007 Silverado, Sierra, Tahoe, Suburban, and Yukon. DescriptionOur Vortec standalone harnesses are designed for installing these new GM EFI engines into your ride, whatever it may be. This swap harness is specific for 2003-2007 4.8, 5.3,...

Application2003-2007 Silverado, Sierra, Tahoe, Yukon, and Suburban Equipped with a 4.8, 5.3, or a 6.0. This harness is for Multec injectors that commonly came on NON Flex Fuel Vehicles. DescriptionOur Vortec standalone harnesses are designed for...

Application2003-2007 Silverado, Sierra, Tahoe, Suburban, and Yukon. DescriptionOur Vortec standalone harnesses are designed for installing these new GM EFI engines into your ride, whatever it may be. This swap harness is specific for 2003-2007 4.8, 5.3,...

Application2003-2007 Silverado, Sierra, Tahoe, Suburban, and Yukon. DescriptionOur Vortec standalone harnesses are designed for installing these new GM EFI engines into your ride, whatever it may be. This swap harness is specific for 2003-2007 4.8, 5.3,...

Application2003-2006 Silverado, Sierra, Tahoe, Yukon, and Suburban Equipped with a 4.8, 5.3, or a 6.0. This harness is for EV6 injectors that commonly came on Flex Fuel Vehicles. DescriptionOur Vortec standalone harnesses are designed for installing...

Application2003-2007 Silverado, Sierra, Tahoe, Suburban, and Yukon. DescriptionOur Vortec standalone harnesses are designed for installing these new GM EFI engines into your ride, whatever it may be. This swap harness is specific for 2003-2007 4.8, 5.3,...

Application2003-2007 Silverado, Sierra, Tahoe, Suburban, and Yukon. DescriptionOur Vortec standalone harnesses are designed for installing these new GM EFI engines into your ride, whatever it may be. This swap harness is specific for 2003-2007 4.8, 5.3,...

Application 2003-2006 Silverado, Sierra, Tahoe, Yukon, and Suburban Equipped with a 4.8, 5.3, or a 6.0. This harness is for EV6 injectors that commonly came on Flex Fuel Vehicles. DescriptionOur Vortec standalone harnesses are designed for installing...

2003-2007 Silverado, Sierra, Tahoe, Suburban, and Yukon. DescriptionOur Vortec standalone harnesses are designed for installing these new GM EFI engines into your ride, whatever it may be. This swap harness is specific for 2003-2007 4.8, 5.3, and 6.0...