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Fuel Injection - Fuel Injection System Wiring Harnesses
Fuel Injection System Wiring Harnesses make a tough job easy. They are designed to be a direct fit with the factory ecu on street applications. Fuel Injection Wiring Harness kits include instructions for ease of installation.

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Description: FAST XFI Fuel Injector Wiring Harness, Chevrolet 18436572 Firing Order
Item #: FST301200
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
Ships from Michigan.
Price: $127.37
Sale: $115.96
Save: 9%
Save: $11.41
Description: FAST XFI Fuel Injector Wiring Harness, Ford
Item #: FST301203
Condition: New
Limited Supply: Only 2 Left!
Same Day Shipping!
Ships from Michigan.
Price: $123.02
Sale: $113.76
Save: 8%
Save: $9.26
Qty:

Description: Fast Ford EFI Ignition Adapter Harness
Item #: FST301308
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
Ships from Michigan.
Price: $72.10
Sale: $70.53
Save: 2%
Save: $1.57
Description: Connectors IPU Adapter Harness, Terminals, Seals, FAST XFI
Item #: FST301300
Condition: New
Limited Supply: Only 2 Left!
Same Day Shipping!
Ships from Michigan.
Price: $30.87
Sale: $30.35
Save: 2%
Save: $0.52
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Description: Fuel Injector Type Adapter Harnesses, (Set of 8)
Item #: FST170604-8
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
Ships from Michigan.
Price: $91.99
Sale: $80.31
Save: 13%
Save: $11.68
Qty:

Description: Fast XFI ECU, Main Harness, Chevrolet 1997-2004 5.7L
Item #: FST301101
Condition: New
Limited Supply: Only 2 Left!
Same Day Shipping!
Ships from Michigan.
Price: $364.27
Sale: $339.29
Save: 7%
Save: $24.98
Qty:

Description: Fast XFI Wiring Harness, Main Harness, Chevrolet 5.0L 5.7L
Item #: FST301100
Condition: New
Limited Supply: Only 2 Left!
Same Day Shipping!
Ships from Michigan.
Price: $364.27
Sale: $341.87
Save: 6%
Save: $22.40
Qty:

Description: Fast XFI Wiring Harness, Main Harness, Universal
Item #: FST301105
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
Ships from Michigan.
Price: $338.40
Sale: $318.87
Save: 6%
Save: $19.53
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Description: Harness will work with GM Gen III/IV LS1, LS2, LS3, LS6, LS7, etc
Item #: FST301108
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
Ships from Michigan.
Price: $364.27
Sale: $341.87
Save: 6%
Save: $22.40
Qty:

Description: EEC-IV Revised Wiring Harness, Multi-Port, Mass Airflow, Ford 5.0L/302
Item #: FRDM12071-A50
Condition: New
Limited Supply: Only 2 Left!
Same Day Shipping!
Ships from Michigan.
Price: $755.00
Sale: $581.96
Save: 23%
Save: $173.04
Qty:

Description: Dominator EFI Connector J2B Auxiliary Harness
Item #: HLY558-402
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
Ships from Michigan.
Price: $103.95
Sale: $93.46
Save: 10%
Save: $10.49
Description: EFI Wiring Harness, J2A Auxiliary Connector Harness, Holley Dominator EFI, Universal, Kit.
Item #: HLY558-401
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Price: $156.95
Sale: $143.96
Save: 8%
Save: $12.99
Shipping
Description: EFI Wiring Harness, Drive by Wire, Holley Dominator EFI, GM, Each.
Item #: HLY558-406
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Price: $169.95
Sale: $152.95
Save: 10%
Save: $17.00
Shipping
Description: Dominator EFI Multi Map Selector
Item #: HLY558-407
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
Ships from Michigan.
Price: $100.95
Sale: $90.30
Save: 11%
Save: $10.65
Description: Main Power Wiring Harness, Dominator, Holley
Item #: HLY558-308
Condition: New
Limited Supply: Only 5 Left!
Same Day Shipping!
Ships from Michigan.
Price: $66.48
Sale: $59.83
Save: 10%
Save: $6.65
Qty:

Description: Complete terminated harness with J4 connector to operate GM electronic transmissions. For Dominator EFI
Item #: HLY558-405
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Price: $189.95
Sale: $170.95
Save: 10%
Save: $19.00
Shipping
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Description: EFI Wiring Harness, Ignition Adapter Harness, GM Small Cap HEI Distributor to Holley Avenger/HP/Dominator EFI, Each.
Item #: HLY558-304
Condition: New
Limited Supply: Only 2 Left!
Same Day Shipping!
Ships from Michigan.
Price: $33.79
Sale: $30.41
Save: 10%
Save: $3.38
Qty:

Description: Computer, HP EFI, Engine Control Unit, Wiring Harness, 58x Reluctor Wheel, LS2/LS3/LS7, GM LS-Series, Each.
Item #: HLY550-603
Condition: New
Limited Supply: Only 2 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Price: $1,963.95
Sale: $1,766.95
Save: 10%
Save: $197.00
Shipping
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Description: J1A/B Dominator Wiring Harness, Holley
Item #: HLY558-400
Condition: New
Same Day Shipping!
Ships from Michigan.
Price: $76.99
Sale: $69.29
Save: 10%
Save: $7.70
Qty:

Description: EFI Wiring Harness, Main Harness, Holley HP/Dominator EFI, 24x Reluctor Wheel, LS1/LS6, GM LS-Series, Each.
Item #: HLY558-102
Condition: New
Limited Supply: Only 6 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Price: $425.95
Sale: $382.95
Save: 10%
Save: $43.00
Shipping
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Description: EFI Wiring Harness, Main Harness, Holley HP/Dominator EFI, 58x Reluctor Wheel, LS2/LS3/LS7, GM LS-Series, Each.
Item #: HLY558-103
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Price: $425.95
Sale: $382.95
Save: 10%
Save: $43.00
Shipping
Description: EFI Wiring Harness, EV6 Style Injectors, Holley Dominator EFI, Each.
Item #: HLY558-201
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Price: $110.95
Sale: $101.96
Save: 8%
Save: $8.99
Shipping
Description: EFI Wiring Harness, Magnetic Pickup, Holley Dominator EFI, GM LS-Series, Each.
Item #: HLY558-303
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
Ships from Michigan.
Price: $62.98
Sale: $56.68
Save: 10%
Save: $6.30
Description: EFI Wiring Harness, MPFI Main Harness, Holley HP/Dominator EFI, Universal, Each.
Item #: HLY558-104
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Price: $356.95
Sale: $320.95
Save: 10%
Save: $36.00
Shipping
Description: Universal Unterminated Injector Harness for HP EFI & Dominator EFI(Bosch EV1 style).
Item #: HLY558-204
Condition: New
Limited Supply: Only 2 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Price: $137.95
Sale: $126.96
Save: 8%
Save: $10.99
Shipping
Qty:

Items 1-25 of 50


More About Fuel Injection System Wiring Harnesses

Fuel Injection System Wiring Harnesses make a tough job easy. They are designed to be a direct fit with the factory ecu on street applications. Fuel Injection Wiring Harness kits include instructions for ease of installation.