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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 More Details »
Item #: FST301200
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $145.78
Sale: $115.87
Save: 21%
Save: $29.91
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Description: FAST XFI Fuel Injector Wiring Harness, Ford More Details »
Item #: FST301203
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $141.24
Sale: $110.31
Save: 22%
Save: $30.93
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Description: Fast Ford EFI Ignition Adapter Harness More Details »
Item #: FST301308
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $82.77
Sale: $71.25
Save: 14%
Save: $11.52
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Description: Connectors IPU Adapter Harness, Terminals, Seals, FAST XFI More Details »
Item #: FST301300
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $35.44
Sale: $30.66
Save: 13%
Save: $4.78
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Description: Fuel Injector Type Adapter Harnesses, (Set of 8) More Details »
Item #: FST170604-8
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $86.17
Sale: $76.22
Save: 12%
Save: $9.95
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Description: Fast XFI ECU, Main Harness, Chevrolet 1997-2004 5.7L More Details »
Item #: FST301101
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $418.21
Sale: $338.26
Save: 19%
Save: $79.95
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Description: Fast XFI Wiring Harness, Main Harness, Chevrolet 5.0L 5.7L More Details »
Item #: FST301100
Condition: New
Limited Supply: Only 2 Left!
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Ships from Michigan.
Price: $418.21
Sale: $341.26
Save: 18%
Save: $76.95
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Description: Fast XFI Wiring Harness, Main Harness, Universal More Details »
Item #: FST301105
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $388.51
Sale: $325.66
Save: 16%
Save: $62.85
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Description: Harness will work with GM Gen III/IV LS1, LS2, LS3, LS6, LS7, etc More Details »
Item #: FST301108
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $418.21
Sale: $346.45
Save: 17%
Save: $71.76
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Description: EEC-IV Revised Wiring Harness, Multi-Port, Mass Airflow, Ford 5.0L/302 More Details »
Item #: FRDM12071-A50
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $755.00
Sale: $582.00
Save: 23%
Save: $173.00
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Description: Dominator EFI Connector J2B Auxiliary Harness More Details »
Item #: HLY558-402
Condition: New
Limited Supply: Only 0 Left!
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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. More Details »
Item #: HLY558-401
Condition: New
Limited Supply: Only 4 Left!
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FREE SHIPPING! Ships from Michigan.
Price: $156.95
Sale: $140.95
Save: 10%
Save: $16.00
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Description: EFI Wiring Harness, Drive by Wire, Holley Dominator EFI, GM, Each. More Details »
Item #: HLY558-406
Condition: New
Limited Supply: Only 4 Left!
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FREE SHIPPING! Ships from Michigan.
Price: $169.95
Sale: $152.95
Save: 10%
Save: $17.00
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Description: Dominator EFI Multi Map Selector More Details »
Item #: HLY558-407
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $100.95
Sale: $90.30
Save: 11%
Save: $10.65
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Description: Main Power Wiring Harness, Dominator, Holley More Details »
Item #: HLY558-308
Condition: New
Limited Supply: Only 4 Left!
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Ships from Michigan.
Price: $66.48
Sale: $59.83
Save: 10%
Save: $6.65
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Description: Complete terminated harness with J4 connector to operate GM electronic transmissions. For Dominator EFI More Details »
Item #: HLY558-405
Condition: New
Limited Supply: Only 4 Left!
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FREE SHIPPING! Ships from Michigan.
Price: $189.95
Sale: $170.95
Save: 10%
Save: $19.00
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Description: EFI Wiring Harness, Ignition Adapter Harness, GM Small Cap HEI Distributor to Holley Avenger/HP/Dominator EFI, Each. More Details »
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
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Description: Computer, HP EFI, Engine Control Unit, Wiring Harness, 58x Reluctor Wheel, LS2/LS3/LS7, GM LS-Series, Each. More Details »
Item #: HLY550-603
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Price: $1,963.95
Sale: $1,766.95
Save: 10%
Save: $197.00
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Description: J1A/B Dominator Wiring Harness, Holley More Details »
Item #: HLY558-400
Condition: New
Limited Supply: Only 6 Left!
Same Day Shipping!
Ships from Michigan.
Price: $76.99
Sale: $69.29
Save: 10%
Save: $7.70
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Description: EFI Wiring Harness, Main Harness, Holley HP/Dominator EFI, 24x Reluctor Wheel, LS1/LS6, GM LS-Series, Each. More Details »
Item #: HLY558-102
Condition: New
Limited Supply: Only 4 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Price: $425.95
Sale: $382.95
Save: 10%
Save: $43.00
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Description: EFI Wiring Harness, Main Harness, Holley HP/Dominator EFI, 58x Reluctor Wheel, LS2/LS3/LS7, GM LS-Series, Each. More Details »
Item #: HLY558-103
Condition: New
Limited Supply: Only 4 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Price: $425.95
Sale: $382.95
Save: 10%
Save: $43.00
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Description: EFI Wiring Harness, EV6 Style Injectors, Holley Dominator EFI, Each. More Details »
Item #: HLY558-201
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Price: $110.95
Sale: $101.98
Save: 8%
Save: $8.97
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Description: EFI Wiring Harness, Magnetic Pickup, Holley Dominator EFI, GM LS-Series, Each. More Details »
Item #: HLY558-303
Condition: New
Limited Supply: Only 3 Left!
Same Day Shipping!
Ships from Michigan.
Price: $62.98
Sale: $56.68
Save: 10%
Save: $6.30
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Description: EFI Wiring Harness, MPFI Main Harness, Holley HP/Dominator EFI, Universal, Each. More Details »
Item #: HLY558-104
Condition: New
Limited Supply: Only 3 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Price: $356.95
Sale: $320.95
Save: 10%
Save: $36.00
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Description: Universal Unterminated Injector Harness for HP EFI & Dominator EFI(Bosch EV1 style). More Details »
Item #: HLY558-204
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Price: $137.95
Sale: $124.06
Save: 10%
Save: $13.89
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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.