FAST Wiring Harness Main LS1LS2L
FAST Wiring Harness Main LS1LS2L
FAST Wiring Harness Main LS1LS2L
FAST Wiring Harness Main LS1LS2L
FAST Wiring Harness Main LS1LS2L
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FAST Wiring Harness Main LS1LS2L

2 sold in last 8 hours
FAST
FST301108
Out of stock
Wiring Harnesses
$418.95
FAST offers several main harness options to aC-Commodate most customers' needs. The XFI Main Harness is...
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$418.95

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FAST Wiring Harness Main LS1LS2L
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.
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This Part Fits:

Year Make Model Submodel
2004-2007 Cadillac CTS V
2002-2005 Chevrolet Avalanche 1500 Base
2005-2006 Chevrolet Avalanche 1500 LS
2005-2006 Chevrolet Avalanche 1500 LT
2004-2006 Chevrolet Avalanche 1500 Z66
2002-2006 Chevrolet Avalanche 1500 Z71
2014-2015 Chevrolet Camaro Z/28
1998-2002 Chevrolet Camaro Z28
1998-2002 Chevrolet Camaro Z28 SS
2013 Chevrolet Corvette 427
2003 Chevrolet Corvette 50th Anniversary Edition
2003 Chevrolet Corvette 50th Anniversary Edition Pace Car
1997-2007 Chevrolet Corvette Base
1998 Chevrolet Corvette Indianapolis 500 Pace Car
2001-2004,2006-2013 Chevrolet Corvette Z06
2011 Chevrolet Corvette Z06 Carbon
2003-2007 Chevrolet Express 1500 Base
2003-2007 Chevrolet Express 1500 LS
2006-2007 Chevrolet Express 1500 LT
2003-2007 Chevrolet Express 2500 Base
2003-2006 Chevrolet Express 2500 LS
2006 Chevrolet Express 2500 LT
2003-2005 Chevrolet Express 3500 Base
1999-2005 Chevrolet Silverado 1500 Base
1999-2006 Chevrolet Silverado 1500 LS
1999-2007 Chevrolet Silverado 1500 LT
2007 Chevrolet Silverado 1500 LTZ
2002-2004,2006-2007 Chevrolet Silverado 1500 WT
2004 Chevrolet Silverado 1500 Z71 Off-Road
2007 Chevrolet Silverado 1500 Classic LS
2007 Chevrolet Silverado 1500 Classic LT
2007 Chevrolet Silverado 1500 Classic WT
1999-2004 Chevrolet Silverado 2500 Base
1999-2000 Chevrolet Silverado 2500 LS
1999-2000 Chevrolet Silverado 2500 LT
2004-2005 Chevrolet Silverado 3500 Base
2003-2006 Chevrolet SSR Base
2000-2001,2006 Chevrolet Suburban 1500 Base
2000-2006 Chevrolet Suburban 1500 LS
2000-2006 Chevrolet Suburban 1500 LT
2004-2006 Chevrolet Suburban 1500 Z71
2000-2001,2006 Chevrolet Tahoe Base
2000-2006 Chevrolet Tahoe LS
2000-2006 Chevrolet Tahoe LT
2003-2006 Chevrolet Tahoe Z71
2006-2009 Chevrolet Trailblazer SS
2003-2004 Chevrolet Trailblazer EXT LS
2003-2004 Chevrolet Trailblazer EXT LT
2003-2004 Chevrolet Trailblazer EXT North Face
2004 GMC Envoy XL SLE
2004 GMC Envoy XL SLT
2003-2006 GMC Savana 1500 Base
2006 GMC Savana 1500 LS
2006 GMC Savana 1500 LT
2003-2005 GMC Savana 1500 SLE
2003-2007 GMC Savana 2500 Base
2003-2005 GMC Savana 2500 SLE
2004-2007 GMC Savana 3500 Base
2005 GMC Savana 3500 SLE
2002-2005 GMC Sierra 1500 Base
2002 GMC Sierra 1500 HT
1999-2003,2006 GMC Sierra 1500 SL
1999-2007 GMC Sierra 1500 SLE
1999-2006 GMC Sierra 1500 SLT
2002-2007 GMC Sierra 1500 WT
2007 GMC Sierra 1500 Classic SL
2007 GMC Sierra 1500 Classic SLE
2007 GMC Sierra 1500 Classic WT
1999-2001 GMC Sierra 2500 SL
1999-2001 GMC Sierra 2500 SLE
1999-2001 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
2006 GMC Yukon SL
2000-2006 GMC Yukon SLE
2000-2006 GMC Yukon SLT
2006 GMC Yukon XL 1500 SL
2000-2006 GMC Yukon XL 1500 SLE
2000-2006 GMC Yukon XL 1500 SLT
2000-2001 GMC Yukon XL 2500 SLT
2003-2007 Hummer H2 Base
1998-2002 Pontiac Firebird Formula
1998-2002 Pontiac Firebird Trans Am
2004-2006 Pontiac GTO Base
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