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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!
FREE SHIPPING! Ships from Michigan.
Price: $127.37
Sale: $124.96
Save: 2%
Save: $2.41
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Description: FAST XFI Fuel Injector Wiring Harness, Ford
Item #: FST301203
Condition: New
Limited Supply: Only 1 Left!
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FREE SHIPPING! Ships from Michigan.
Price: $126.99
Sale: $123.87
Save: 2%
Save: $3.12
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Description: Fast Ford EFI Ignition Adapter Harness
Item #: FST301308
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $73.99
Sale: $71.87
Save: 3%
Save: $2.12
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Description: Connectors IPU Adapter Harness, Terminals, Seals, FAST XFI
Item #: FST301300
Condition: New
Limited Supply: Only 2 Left!
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Ships from Michigan.
Price: $31.99
Sale: $30.87
Save: 4%
Save: $1.12
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Description: Fuel Injector Type Adapter Harnesses, (Set of 8)
Item #: FST170604-8
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $98.99
Sale: $93.87
Save: 5%
Save: $5.12
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Description: Fast XFI ECU, Main Harness, Chevrolet 1997-2004 5.7L
Item #: FST301101
Condition: New
Limited Supply: Only 2 Left!
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FREE SHIPPING! Ships from Michigan.
Price: $364.27
Sale: $351.87
Save: 3%
Save: $12.40
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Description: Fast XFI Wiring Harness, Main Harness, Chevrolet 5.0L 5.7L
Item #: FST301100
Condition: New
Limited Supply: Only 2 Left!
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FREE SHIPPING! Ships from Michigan.
Price: $364.27
Sale: $354.87
Save: 3%
Save: $9.40
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Description: Fast XFI Wiring Harness, Main Harness, Universal
Item #: FST301105
Condition: New
Limited Supply: Only 1 Left!
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FREE SHIPPING! Ships from Michigan.
Price: $344.99
Sale: $340.87
Save: 1%
Save: $4.12
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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!
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FREE SHIPPING! Ships from Michigan.
Price: $371.99
Sale: $367.87
Save: 1%
Save: $4.12
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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!
FREE SHIPPING! Ships from Michigan.
Price: $755.00
Sale: $570.96
Save: 24%
Save: $184.04
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NEW!
Description: Dominator EFI Connector J2B Auxiliary Harness
Item #: HLY558-402
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
Ships from Michigan.
Price: $101.95
Sale: $82.06
Save: 20%
Save: $19.89
Description: EFI Wiring Harness, J2A Auxiliary Connector Harness, Holley Dominator EFI, Universal, Kit.
Item #: HLY558-401
Condition: New
Limited Supply: Only 3 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Price: $152.95
Sale: $131.96
Save: 14%
Save: $20.99
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Description: EFI Wiring Harness, Drive by Wire, Holley Dominator EFI, GM, Each.
Item #: HLY558-406
Condition: New
Limited Supply: Only 2 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Price: $165.95
Sale: $141.96
Save: 14%
Save: $23.99
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NEW!
Description: Dominator EFI Multi Map Selector
Item #: HLY558-407
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
Ships from Michigan.
Price: $97.89
Sale: $79.29
Save: 19%
Save: $18.60
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Description: Main Power Wiring Harness, Dominator, Holley
Item #: HLY558-308
Condition: New
Limited Supply: Only 0 Left!
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Ships from Michigan.
Price: $64.86
Sale: $52.53
Save: 19%
Save: $12.33
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!
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FREE SHIPPING! Ships from Michigan.
Price: $184.95
Sale: $155.96
Save: 16%
Save: $28.99
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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 5 Left!
Same Day Shipping!
Ships from Michigan.
Price: $32.97
Sale: $26.70
Save: 19%
Save: $6.27
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 1 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Price: $1,914.95
Sale: $1,550.66
Save: 19%
Save: $364.29
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Description: J1A/B Dominator Wiring Harness, Holley
Item #: HLY558-400
Condition: New
Limited Supply: Only 5 Left!
Same Day Shipping!
Ships from Michigan.
Price: $75.12
Sale: $60.85
Save: 19%
Save: $14.27
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: $414.95
Sale: $335.66
Save: 19%
Save: $79.29
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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 4 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Price: $414.95
Sale: $335.66
Save: 19%
Save: $79.29
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Description: EFI Wiring Harness, EV6 Style Injectors, Holley Dominator EFI, Each.
Item #: HLY558-201
Condition: New
Limited Supply: Only 2 Left!
Same Day Shipping!
Ships from Michigan.
Price: $108.95
Sale: $87.60
Save: 20%
Save: $21.35
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Description: EFI Wiring Harness, Magnetic Pickup, Holley Dominator EFI, GM LS-Series, Each.
Item #: HLY558-303
Condition: New
Limited Supply: Only 2 Left!
Same Day Shipping!
Ships from Michigan.
Price: $61.44
Sale: $49.77
Save: 19%
Save: $11.67
Qty:

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: $347.95
Sale: $282.96
Save: 19%
Save: $64.99
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NEW!
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: $134.95
Sale: $115.96
Save: 14%
Save: $18.99
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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.