Search
Filters
Close
Availability: Special Order*
SKU: 301108
Manufacturer: FAST
Ship to
*
*
Shipping Method
Name
Estimated Delivery
Price
No shipping options
$418.95

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.

FAST offers several main harness options to accommodate 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.

Works well out of the box with GM LS1,LS2,LS3,LS6,LS7,LS9 along with GM LS Based Pickup Truck and SUV applications.

This XFI Main Harness is designed to connect engines that feature GM LS style sensors to our XFI ECU.

XFI Main Harness designed for engines whose sensors feature GM LS style sensors.

XFI Main Harness for GM LS1, LS2, LS3, LS6, LS7, LS9 and LS Trucks

Wiring Harness, Main Ls1,Ls2,L S6,Ls7

FAST Wiring Harness Main LS1LS2L

Fuel Management Wiring Harness

XFI Main Harness LS

Wiring Harness

LSMainXFIHrnss

No

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.

FAST offers several main harness options to accommodate 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.

Works well out of the box with GM LS1,LS2,LS3,LS6,LS7,LS9 along with GM LS Based Pickup Truck and SUV applications.

This XFI Main Harness is designed to connect engines that feature GM LS style sensors to our XFI ECU.

XFI Main Harness designed for engines whose sensors feature GM LS style sensors.

XFI Main Harness for GM LS1, LS2, LS3, LS6, LS7, LS9 and LS Trucks

Wiring Harness, Main Ls1,Ls2,L S6,Ls7

FAST Wiring Harness Main LS1LS2L

Fuel Management Wiring Harness

XFI Main Harness LS

Wiring Harness

LSMainXFIHrnss

No

Write your own review
*
*
  • Bad
  • Excellent
*
*
*
*

Vehicle Fitment

Chevrolet

    Camaro

      2015 Z/28 - 2014 Z/28 - 2002 Z28 SS - 2002 Z28 - 2001 Z28 SS - 2001 Z28 - 2000 Z28 - 2000 Z28 SS - 1999 Z28 SS - 1999 Z28 - 1998 Z28 - 1998 Z28 SS

    Corvette

      2013 Z06 - 2013 427 - 2012 Z06 - 2011 Z06 - 2011 Z06 Carbon - 2010 Z06 - 2009 Z06 - 2008 Z06 - 2007 Z06 - 2007 Base - 2006 Base - 2006 Z06 - 2005 Base - 2004 Base - 2004 Z06 - 2003 50th Anniversary Edition - 2003 50th Anniversary Edition Pace Car - 2003 Base - 2003 Z06 - 2002 Base - 2002 Z06 - 2001 Z06 - 2001 Base - 2000 Base - 1999 Base - 1998 Base - 1998 Indianapolis 500 Pace Car - 1997 Base

    Trailblazer

      2009 SS - 2008 SS - 2007 SS - 2006 SS

    Express 1500

      2007 Base - 2007 LS - 2007 LT - 2006 LS - 2006 Base - 2006 LT - 2005 Base - 2005 LS - 2004 Base - 2004 LS - 2003 Base - 2003 LS

    Express 2500

      2007 Base - 2006 Base - 2006 LS - 2006 LT - 2005 Base - 2005 LS - 2004 Base - 2004 LS - 2003 Base - 2003 LS

    Silverado 1500

      2007 LT - 2007 LTZ - 2007 WT - 2006 WT - 2006 LS - 2006 LT - 2005 Base - 2005 LS - 2005 LT - 2004 Base - 2004 LS - 2004 LT - 2004 WT - 2004 Z71 Off-Road - 2003 Base - 2003 LS - 2003 LT - 2003 WT - 2002 LT - 2002 WT - 2002 LS - 2002 Base - 2001 Base - 2001 LS - 2001 LT - 2000 Base - 2000 LT - 2000 LS - 1999 Base - 1999 LS - 1999 LT

    Silverado 1500 Classic

      2007 WT - 2007 LS - 2007 LT

    Avalanche 1500

      2006 LS - 2006 LT - 2006 Z66 - 2006 Z71 - 2005 Base - 2005 Z66 - 2005 Z71 - 2005 LS - 2005 LT - 2004 Base - 2004 Z66 - 2004 Z71 - 2003 Base - 2003 Z71 - 2002 Base - 2002 Z71

    SSR

      2006 Base - 2005 Base - 2004 Base - 2003 Base

    Suburban 1500

      2006 Base - 2006 LS - 2006 LT - 2006 Z71 - 2005 LS - 2005 LT - 2005 Z71 - 2004 LS - 2004 LT - 2004 Z71 - 2003 LS - 2003 LT - 2002 LT - 2002 LS - 2001 LS - 2001 Base - 2001 LT - 2000 Base - 2000 LT - 2000 LS

    Tahoe

      2006 Base - 2006 LS - 2006 LT - 2006 Z71 - 2005 LS - 2005 LT - 2005 Z71 - 2004 LS - 2004 LT - 2004 Z71 - 2003 LS - 2003 LT - 2003 Z71 - 2002 LT - 2002 LS - 2001 LT - 2001 LS - 2001 Base - 2000 LS - 2000 Base - 2000 LT

    Express 3500

      2005 Base - 2004 Base - 2003 Base

    Silverado 3500

      2005 Base - 2004 Base

    Silverado 2500

      2004 Base - 2003 Base - 2002 Base - 2001 Base - 2000 Base - 2000 LS - 2000 LT - 1999 Base - 1999 LT - 1999 LS

    Trailblazer EXT

      2004 LS - 2004 LT - 2004 North Face - 2003 LS - 2003 LT - 2003 North Face

Cadillac

    CTS

      2007 V - 2006 V - 2005 V - 2004 V

GMC

    Savana 2500

      2007 Base - 2006 Base - 2005 Base - 2005 SLE - 2004 Base - 2004 SLE - 2003 Base - 2003 SLE

    Savana 3500

      2007 Base - 2006 Base - 2005 Base - 2005 SLE - 2004 Base

    Sierra 1500

      2007 SLE - 2007 WT - 2006 SL - 2006 SLE - 2006 SLT - 2006 WT - 2005 Base - 2005 SLE - 2005 SLT - 2005 WT - 2004 Base - 2004 SLE - 2004 SLT - 2004 WT - 2003 Base - 2003 SL - 2003 SLE - 2003 SLT - 2003 WT - 2002 HT - 2002 Base - 2002 WT - 2002 SL - 2002 SLE - 2002 SLT - 2001 SLE - 2001 SL - 2001 SLT - 2000 SLT - 2000 SL - 2000 SLE - 1999 SLE - 1999 SLT - 1999 SL

    Sierra 1500 Classic

      2007 WT - 2007 SL - 2007 SLE

    Savana 1500

      2006 Base - 2006 LS - 2006 LT - 2005 Base - 2005 SLE - 2004 Base - 2004 SLE - 2003 Base - 2003 SLE

    Yukon

      2006 SLE - 2006 SLT - 2006 SL - 2005 SLE - 2005 SLT - 2004 SLE - 2004 SLT - 2003 SLE - 2003 SLT - 2002 SLE - 2002 SLT - 2001 SLE - 2001 SLT - 2000 SLE - 2000 SLT

    Yukon XL 1500

      2006 SLE - 2006 SLT - 2006 SL - 2005 SLE - 2005 SLT - 2004 SLE - 2004 SLT - 2003 SLE - 2003 SLT - 2002 SLE - 2002 SLT - 2001 SLE - 2001 SLT - 2000 SLT - 2000 SLE

    Envoy XL

      2004 SLE - 2004 SLT

    Sierra 2500

      2001 SL - 2001 SLE - 2001 SLT - 2000 SLE - 2000 SLT - 2000 SL - 1999 SL - 1999 SLE - 1999 SLT

    Sierra 2500 HD

      2001 SL - 2001 SLE - 2001 SLT

    Sierra 3500

      2001 SL - 2001 SLE - 2001 SLT

    Yukon XL 2500

      2001 SLT - 2000 SLT

Hummer

    H2

      2007 Base - 2006 Base - 2005 Base - 2004 Base - 2003 Base

Pontiac

    GTO

      2006 Base - 2005 Base - 2004 Base

    Firebird

      2002 Trans Am - 2002 Formula - 2001 Formula - 2001 Trans Am - 2000 Trans Am - 2000 Formula - 1999 Formula - 1999 Trans Am - 1998 Formula - 1998 Trans Am
*we take fitment seriously and have invested heavily into matching products to your vehicle, but it is up to the end user to confirm products are suitable for their vehicle, legal for them to use for the purposes they intend, and verify fitment upon installation. Many opened products may not be returned, so if fitment is in question, please contact us before ordering. We are not resonsible for any costs incurring from a product not being suitable to an end users application.