FAST offers several main harness options to aC-Commodate most customers' needs. The XFI Main Harness is responsible for connecting your XFI ECU to sensors as well as digital dashes, EGT modules, and various optional accessories. The Main Harness also handles communication between the ECU and ignition devices. Main harnesses are available in TPI, LT-1, LS-1 through 9 (including truck/suv designs), Modern Hemi, Carburetor Conversions and even Rear-Engine Dragsters and Boats. FAST also offers Main Harnesses that come terminated on the sensor side but non-terminated on the ECU side to allow for a truely custom fit. All terminals, seals and connectors are available individually, so don't hesitate to try your hand at crafting your own custom harness from start to finish.
This XFI Main Harness is designed to connect engines that feature GM LS style sensors to our XFI ECU.
Works well out of the box with GM LS1,LS2,LS3,LS6,LS7,LS9 along with GM LS Based Pickup Truck and SUV applications.
Fits, Fitments
1997 Chevrolet Corvette Base
1998 Chevrolet Camaro Z28
1998 Chevrolet Camaro Z28 SS
1998 Chevrolet Corvette Base
1998 Chevrolet Corvette Indianapolis 500 Pace Car
1998 Pontiac Firebird Formula
1998 Pontiac Firebird Trans Am
1999 Chevrolet Camaro Z28
1999 Chevrolet Camaro Z28 SS
1999 Chevrolet Corvette Base
1999 Chevrolet Silverado 1500 Base
1999 Chevrolet Silverado 1500 LS
1999 Chevrolet Silverado 1500 LT
1999 Chevrolet Silverado 2500 Base
1999 Chevrolet Silverado 2500 LS
1999 Chevrolet Silverado 2500 LT
1999 GMC Sierra 1500 SL
1999 GMC Sierra 1500 SLE
1999 GMC Sierra 1500 SLT
1999 GMC Sierra 2500 SL
1999 GMC Sierra 2500 SLE
1999 GMC Sierra 2500 SLT
1999 Pontiac Firebird Formula
1999 Pontiac Firebird Trans Am
2000 Chevrolet Camaro Z28
2000 Chevrolet Camaro Z28 SS
2000 Chevrolet Corvette Base
2000 Chevrolet Silverado 1500 Base
2000 Chevrolet Silverado 1500 LS
2000 Chevrolet Silverado 1500 LT
2000 Chevrolet Silverado 2500 Base
2000 Chevrolet Silverado 2500 LS
2000 Chevrolet Silverado 2500 LT
2000 Chevrolet Suburban 1500 Base
2000 Chevrolet Suburban 1500 LS
2000 Chevrolet Suburban 1500 LT
2000 Chevrolet Tahoe Base
2000 Chevrolet Tahoe LS
2000 Chevrolet Tahoe LT
2000 GMC Sierra 1500 SL
2000 GMC Sierra 1500 SLE
2000 GMC Sierra 1500 SLT
2000 GMC Sierra 2500 SL
2000 GMC Sierra 2500 SLE
2000 GMC Sierra 2500 SLT
2000 GMC Yukon SLE
2000 GMC Yukon SLT
2000 GMC Yukon XL 1500 SLE
2000 GMC Yukon XL 1500 SLT
2000 GMC Yukon XL 2500 SLT
2000 Pontiac Firebird Formula
2000 Pontiac Firebird Trans Am
2001 Chevrolet Camaro Z28
2001 Chevrolet Camaro Z28 SS
2001 Chevrolet Corvette Base
2001 Chevrolet Corvette Z06
2001 Chevrolet Silverado 1500 Base
2001 Chevrolet Silverado 1500 LS
2001 Chevrolet Silverado 1500 LT
2001 Chevrolet Silverado 2500 Base
2001 Chevrolet Suburban 1500 Base
2001 Chevrolet Suburban 1500 LS
2001 Chevrolet Suburban 1500 LT
2001 Chevrolet Tahoe Base
2001 Chevrolet Tahoe LS
2001 Chevrolet Tahoe LT
2001 GMC Sierra 1500 SL
2001 GMC Sierra 1500 SLE
2001 GMC Sierra 1500 SLT
2001 GMC Sierra 2500 SL
2001 GMC Sierra 2500 SLE
2001 GMC Sierra 2500 SLT
2001 GMC Sierra 2500 HD SL
2001 GMC Sierra 2500 HD SLE
2001 GMC Sierra 2500 HD SLT
2001 GMC Sierra 3500 SL
2001 GMC Sierra 3500 SLE
2001 GMC Sierra 3500 SLT
2001 GMC Yukon SLE
2001 GMC Yukon SLT
2001 GMC Yukon XL 1500 SLE
2001 GMC Yukon XL 1500 SLT
2001 GMC Yukon XL 2500 SLT
2001 Pontiac Firebird Formula
2001 Pontiac Firebird Trans Am
2002 Chevrolet Avalanche 1500 Base
2002 Chevrolet Avalanche 1500 Z71
2002 Chevrolet Camaro Z28
2002 Chevrolet Camaro Z28 SS
2002 Chevrolet Corvette Base
2002 Chevrolet Corvette Z06
2002 Chevrolet Silverado 1500 Base
2002 Chevrolet Silverado 1500 LS
2002 Chevrolet Silverado 1500 LT
2002 Chevrolet Silverado 1500 WT
2002 Chevrolet Silverado 2500 Base
2002 Chevrolet Suburban 1500 LS
2002 Chevrolet Suburban 1500 LT
2002 Chevrolet Tahoe LS
2002 Chevrolet Tahoe LT
2002 GMC Sierra 1500 Base
2002 GMC Sierra 1500 HT
2002 GMC Sierra 1500 SL
2002 GMC Sierra 1500 SLE
2002 GMC Sierra 1500 SLT
2002 GMC Sierra 1500 WT
2002 GMC Yukon SLE
2002 GMC Yukon SLT
2002 GMC Yukon XL 1500 SLE
2002 GMC Yukon XL 1500 SLT
2002 Pontiac Firebird Formula
2002 Pontiac Firebird Trans Am
2003 Chevrolet Avalanche 1500 Base
2003 Chevrolet Avalanche 1500 Z71
2003 Chevrolet Corvette 50th Anniversary Edition
2003 Chevrolet Corvette 50th Anniversary Edition Pace Car
2003 Chevrolet Corvette Base
2003 Chevrolet Corvette Z06
2003 Chevrolet Express 1500 Base
2003 Chevrolet Express 1500 LS
2003 Chevrolet Express 2500 Base
2003 Chevrolet Express 2500 LS
2003 Chevrolet Express 3500 Base
2003 Chevrolet Silverado 1500 Base
2003 Chevrolet Silverado 1500 LS
2003 Chevrolet Silverado 1500 LT
2003 Chevrolet Silverado 1500 WT
2003 Chevrolet Silverado 2500 Base
2003 Chevrolet SSR Base
2003 Chevrolet Suburban 1500 LS
2003 Chevrolet Suburban 1500 LT
2003 Chevrolet Tahoe LS
2003 Chevrolet Tahoe LT
2003 Chevrolet Tahoe Z71
2003 Chevrolet Trailblazer EXT LS
2003 Chevrolet Trailblazer EXT LT
2003 Chevrolet Trailblazer EXT North Face
2003 GMC Savana 1500 Base
2003 GMC Savana 1500 SLE
2003 GMC Savana 2500 Base
2003 GMC Savana 2500 SLE
2003 GMC Sierra 1500 Base
2003 GMC Sierra 1500 SL
2003 GMC Sierra 1500 SLE
2003 GMC Sierra 1500 SLT
2003 GMC Sierra 1500 WT
2003 GMC Yukon SLE
2003 GMC Yukon SLT
2003 GMC Yukon XL 1500 SLE
2003 GMC Yukon XL 1500 SLT
2003 Hummer H2 Base
2004 Cadillac CTS V
2004 Chevrolet Avalanche 1500 Base
2004 Chevrolet Avalanche 1500 Z66
2004 Chevrolet Avalanche 1500 Z71
2004 Chevrolet Corvette Base
2004 Chevrolet Corvette Z06
2004 Chevrolet Express 1500 Base
2004 Chevrolet Express 1500 LS
2004 Chevrolet Express 2500 Base
2004 Chevrolet Express 2500 LS
2004 Chevrolet Express 3500 Base
2004 Chevrolet Silverado 1500 Base
2004 Chevrolet Silverado 1500 LS
2004 Chevrolet Silverado 1500 LT
2004 Chevrolet Silverado 1500 WT
2004 Chevrolet Silverado 1500 Z71
2004 Chevrolet Silverado 2500 Base
2004 Chevrolet Silverado 3500 Base
2004 Chevrolet SSR Base
2004 Chevrolet Suburban 1500 LS
2004 Chevrolet Suburban 1500 LT
2004 Chevrolet Suburban 1500 Z71
2004 Chevrolet Tahoe LS
2004 Chevrolet Tahoe LT
2004 Chevrolet Tahoe Z71
2004 Chevrolet Trailblazer EXT LS
2004 Chevrolet Trailblazer EXT LT
2004 Chevrolet Trailblazer EXT North Face
2004 GMC Envoy XL SLE
2004 GMC Envoy XL SLT
2004 GMC Savana 1500 Base
2004 GMC Savana 1500 SLE
2004 GMC Savana 2500 Base
2004 GMC Savana 2500 SLE
2004 GMC Savana 3500 Base
2004 GMC Sierra 1500 Base
2004 GMC Sierra 1500 SLE
2004 GMC Sierra 1500 SLT
2004 GMC Sierra 1500 WT
2004 GMC Yukon SLE
2004 GMC Yukon SLT
2004 GMC Yukon XL 1500 SLE
2004 GMC Yukon XL 1500 SLT
2004 Hummer H2 Base
2004 Pontiac GTO Base
2005 Cadillac CTS V
2005 Chevrolet Avalanche 1500 Base
2005 Chevrolet Avalanche 1500 LS
2005 Chevrolet Avalanche 1500 LT
2005 Chevrolet Avalanche 1500 Z66
2005 Chevrolet Avalanche 1500 Z71
2005 Chevrolet Corvette Base
2005 Chevrolet Express 1500 Base
2005 Chevrolet Express 1500 LS
2005 Chevrolet Express 2500 Base
2005 Chevrolet Express 2500 LS
2005 Chevrolet Express 3500 Base
2005 Chevrolet Silverado 1500 Base
2005 Chevrolet Silverado 1500 LS
2005 Chevrolet Silverado 1500 LT
2005 Chevrolet Silverado 3500 Base
2005 Chevrolet SSR Base
2005 Chevrolet Suburban 1500 LS
2005 Chevrolet Suburban 1500 LT
2005 Chevrolet Suburban 1500 Z71
2005 Chevrolet Tahoe LS
2005 Chevrolet Tahoe LT
2005 Chevrolet Tahoe Z71
2005 GMC Savana 1500 Base
2005 GMC Savana 1500 SLE
2005 GMC Savana 2500 Base
2005 GMC Savana 2500 SLE
2005 GMC Savana 3500 Base
2005 GMC Savana 3500 SLE
2005 GMC Sierra 1500 Base
2005 GMC Sierra 1500 SLE
2005 GMC Sierra 1500 SLT
2005 GMC Sierra 1500 WT
2005 GMC Yukon SLE
2005 GMC Yukon SLT
2005 GMC Yukon XL 1500 SLE
2005 GMC Yukon XL 1500 SLT
2005 Hummer H2 Base
2005 Pontiac GTO Base
2006 Cadillac CTS V
2006 Chevrolet Avalanche 1500 LS
2006 Chevrolet Avalanche 1500 LT
2006 Chevrolet Avalanche 1500 Z66
2006 Chevrolet Avalanche 1500 Z71
2006 Chevrolet Corvette Base
2006 Chevrolet Corvette Z06
2006 Chevrolet Express 1500 Base
2006 Chevrolet Express 1500 LS
2006 Chevrolet Express 1500 LT
2006 Chevrolet Express 2500 Base
2006 Chevrolet Express 2500 LS
2006 Chevrolet Express 2500 LT
2006 Chevrolet Silverado 1500 LS
2006 Chevrolet Silverado 1500 LT
2006 Chevrolet Silverado 1500 WT
2006 Chevrolet SSR Base
2006 Chevrolet Suburban 1500 Base
2006 Chevrolet Suburban 1500 LS
2006 Chevrolet Suburban 1500 LT
2006 Chevrolet Suburban 1500 Z71
2006 Chevrolet Tahoe Base
2006 Chevrolet Tahoe LS
2006 Chevrolet Tahoe LT
2006 Chevrolet Tahoe Z71
2006 Chevrolet Trailblazer SS
2006 GMC Savana 1500 Base
2006 GMC Savana 1500 LS
2006 GMC Savana 1500 LT
2006 GMC Savana 2500 Base
2006 GMC Savana 3500 Base
2006 GMC Sierra 1500 SL
2006 GMC Sierra 1500 SLE
2006 GMC Sierra 1500 SLT
2006 GMC Sierra 1500 WT
2006 GMC Yukon SL
2006 GMC Yukon SLE
2006 GMC Yukon SLT
2006 GMC Yukon XL 1500 SL
2006 GMC Yukon XL 1500 SLE
2006 GMC Yukon XL 1500 SLT
2006 Hummer H2 Base
2006 Pontiac GTO Base
2007 Cadillac CTS V
2007 Chevrolet Corvette Base
2007 Chevrolet Corvette Z06
2007 Chevrolet Express 1500 Base
2007 Chevrolet Express 1500 LS
2007 Chevrolet Express 1500 LT
2007 Chevrolet Express 2500 Base
2007 Chevrolet Silverado 1500 LT
2007 Chevrolet Silverado 1500 LTZ
2007 Chevrolet Silverado 1500 WT
2007 Chevrolet Silverado 1500 Classic LS
2007 Chevrolet Silverado 1500 Classic LT
2007 Chevrolet Silverado 1500 Classic WT
2007 Chevrolet Trailblazer SS
2007 GMC Savana 2500 Base
2007 GMC Savana 3500 Base
2007 GMC Sierra 1500 SLE
2007 GMC Sierra 1500 WT
2007 GMC Sierra 1500 Classic SL
2007 GMC Sierra 1500 Classic SLE
2007 GMC Sierra 1500 Classic WT
2007 Hummer H2 Base
2008 Chevrolet Corvette Z06
2008 Chevrolet Trailblazer SS
2009 Chevrolet Corvette Z06
2009 Chevrolet Trailblazer SS
2010 Chevrolet Corvette Z06
2011 Chevrolet Corvette Z06
2011 Chevrolet Corvette Z06 Carbon
2012 Chevrolet Corvette Z06
2013 Chevrolet Corvette 427
2013 Chevrolet Corvette Z06
2014 Chevrolet Camaro Z/28
2015 Chevrolet Camaro Z/28
