New Arrivals/Restock

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.
Fuel Management Wiring Harness
Wiring Harness
Works well out of the box with 5.7L/6.1L/6.4L Modern Hemi Applications.
XFI Main Harness 301104 fits Mopar sensors.
XFI Main Harness designed for integration with engines whose sensors feature Mopar style sensors.
XFI Main Harness Modern Hemi

Vehicle Fitments:

Year	Make	Model	Submodel
2017 - 2018	Chrysler	300	3.6, Hemi
2005 - 2014	Chrysler	300	Base
2006	Chrysler	300	C Heritage
2007	Chrysler	300	C Heritage Edition II
2007 - 2014	Chrysler	300	C Lujo
2015 - 2017	Chrysler	300	C Platinum
2005 - 2010	Chrysler	300	C SRT8
2008 - 2009	Chrysler	300	LX
2010 - 2018	Chrysler	300	S
2009	Chrysler	300	Signature Series
2013	Chrysler	300	SRT8 Core
2012 - 2014	Chrysler	300	SRT8, C Luxury
2018	Chrysler	300	Touring L
2005 - 2018	Chrysler	300	Touring, C, Limited
2007 - 2009	Chrysler	Aspen	Limited
2009	Chrysler	Aspen	Limited Hybrid
2014	Dodge	Challenger	Base
2012 - 2014	Dodge	Challenger	R/T Classic
2016	Dodge	Challenger	R/T Plus Shaker, 392 Hemi Scat Pack Shaker, R/T Shaker
2015 - 2016	Dodge	Challenger	R/T Plus, Black Line
2016 - 2018	Dodge	Challenger	R/T Scat Pack
2009 - 2018	Dodge	Challenger	R/T, SXT
2013 - 2014	Dodge	Challenger	Rallye Redline
2011 - 2012	Dodge	Challenger	RT
2015 - 2018	Dodge	Challenger	Scat Pack, SRT 392, SRT Hellcat
2009 - 2011	Dodge	Challenger	SE
2018	Dodge	Challenger	SRT Demon, SRT Hellcat Widebody, Edicion Especial
2017	Dodge	Challenger	SRT Go Mango
2011 - 2018	Dodge	Challenger	SRT, SXT Plus
2008 - 2014	Dodge	Challenger	SRT8
2017 - 2018	Dodge	Challenger	T/A 392, T/A, R/T 392, Dual Stripes, GT
2006 - 2007	Dodge	Charger	Base
2017 - 2018	Dodge	Charger	Daytona 392, Daytona, R/T 392
2018	Dodge	Charger	GT, GT Plus, SXT Plus Leather
2015 - 2016	Dodge	Charger	R/T Road & Track
2011	Dodge	Charger	R/T Road and Track
2015 - 2018	Dodge	Charger	R/T Scat Pack, SRT Hellcat, SRT 392
2006 - 2018	Dodge	Charger	SE, R/T, Pursuit, SXT, Daytona R/T
2006 - 2014	Dodge	Charger	SRT8
2007 - 2008	Dodge	Charger	SRT8 Super Bee
2011 - 2018	Dodge	Charger	SXT Plus
2006 - 2008	Dodge	Durango	Adventurer
2007 - 2013	Dodge	Durango	Base
2011 - 2018	Dodge	Durango	Citadel, R/T
2011 - 2013	Dodge	Durango	Crew
2012 - 2013	Dodge	Durango	Crew Luxe, Crew Plus
2011	Dodge	Durango	Express, Heat
2017 - 2018	Dodge	Durango	GT
2004 - 2016	Dodge	Durango	Limited
2014 - 2015	Dodge	Durango	Rallye
2009	Dodge	Durango	SE, Limited Hybrid
2004 - 2009	Dodge	Durango	SLT
2008	Dodge	Durango	SLT Plus
2012 - 2018	Dodge	Durango	Special Service
2004 - 2005	Dodge	Durango	ST
2005 - 2018	Dodge	Durango	SXT
2018	Dodge	Durango	SXT Plus, SRT, Pursuit
2006 - 2008	Dodge	Magnum	SRT8
2005	Dodge	Magnum	SXT Special Edition
2005 - 2008	Dodge	Magnum	SXT, SE, R/T
2004 - 2006	Dodge	Ram 1500	SRT-10
2003 - 2010	Dodge	Ram 1500	ST, SLT, Laramie
2008	Dodge	Ram 1500	SXT
2009 - 2010	Dodge	Ram 1500	TRX
2006 - 2010	Dodge	Ram 1500	TRX4, Sport
2009	Dodge	Ram 2500	Crew
2003 - 2010	Dodge	Ram 2500	Laramie, SLT, ST
2006 - 2010	Dodge	Ram 2500	Power Wagon
2008	Dodge	Ram 2500	SLT Big Horn
2005	Dodge	Ram 2500	SLT Daytona
2006	Dodge	Ram 2500	SLT Night Runner Sport
2006 - 2008	Dodge	Ram 2500	SLT Sport
2008 - 2010	Dodge	Ram 2500	SXT
2010	Dodge	Ram 2500	TRX
2006 - 2007	Dodge	Ram 2500	TRX4, Sport
2006 - 2007	Dodge	Ram 3500	Sport
2003 - 2009	Dodge	Ram 3500	ST, SLT, Laramie
2008 - 2009	Dodge	Ram 3500	SXT
2007	Dodge	Ram 3500	TRX4
2006	Jeep	Commander	65 Aniversario, 65th Anniversary Edition
2006 - 2007	Jeep	Commander	Base
2006 - 2010	Jeep	Commander	Limited, Limited Premium
2007 - 2009	Jeep	Commander	Overland
2007 - 2010	Jeep	Commander	Sport
2006	Jeep	Grand Cherokee	65th Anniversary Edition
2016	Jeep	Grand Cherokee	75th Anniversary
2018	Jeep	Grand Cherokee	High Altitude, Trackhawk, Altitude
2012 - 2013	Jeep	Grand Cherokee	Laredo X, Laredo E
2005 - 2018	Jeep	Grand Cherokee	Laredo, Limited
2005 - 2013	Jeep	Grand Cherokee	Limited Premium
2010	Jeep	Grand Cherokee	North Edition, S Limited
2006 - 2018	Jeep	Grand Cherokee	Overland
2012	Jeep	Grand Cherokee	Overland Summit
2010 - 2018	Jeep	Grand Cherokee	SRT
2006 - 2015	Jeep	Grand Cherokee	SRT8
2014 - 2018	Jeep	Grand Cherokee	Summit
2017 - 2018	Jeep	Grand Cherokee	Trailhawk, Limited Lujo Advance, Blindada, Limited Lujo, Summit Elite Platinum
2012 - 2018	Ram	1500	Express
2013 - 2018	Ram	1500	HFE
2011 - 2018	Ram	1500	Laramie, Big Horn, Sport, Laramie Longhorn, Outdoorsman, SLT, Tradesman, SXT, ST
2014 - 2018	Ram	1500	Lone Star, Laramie Limited, Special Service
2013	Ram	1500	R/T
2015 - 2018	Ram	1500	Rebel, Limited
2012	Ram	1500	Tradesman HD
2012 - 2016	Ram	2500	Hemi Sport
2017	Ram	2500	Laramie HD
2014 - 2018	Ram	2500	Laramie Limited
2016 - 2018	Ram	2500	Limited
2013 - 2015	Ram	2500	Lone Star
2011 - 2018	Ram	2500	Power Wagon, Outdoorsman, ST, SLT, Laramie, Laramie Longhorn
2012 - 2018	Ram	2500	R/T
2011	Ram	2500	SLT Sport
2017 - 2018	Ram	2500	Sport, SLT HD
2011 - 2013	Ram	2500	SXT
2013 - 2018	Ram	2500	Tradesman, Big Horn
2014 - 2018	Ram	3500	Laramie Limited
2011 - 2018	Ram	3500	Laramie Longhorn, ST, SLT, Laramie
2016 - 2018	Ram	3500	Limited
2013 - 2017	Ram	3500	Lone Star
2011 - 2013	Ram	3500	SXT
2013 - 2018	Ram	3500	Tradesman, Big Horn