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CAN Extension Harness - 8' 8FT Extension Harness
CAN Extension Harness - 8' 8FT Extension Harness
Part Number: 558-425
$65.85
CAN Extension Harness - 4' 4 ft. extension harness
CAN Extension Harness - 4' 4 ft. extension harness
Part Number: 558-424
$59.25
Ford Coyote (2011-2017) Drive-By-Wire Harness Ford Coyote (2011-2017) Drive-By-Wire Harness
Ford Coyote (2011-2017) Drive-By-Wire Harness Ford Coyote (2011-2017) Drive-By-Wire Harness
Part Number: 558-422
$275.95
Terminator EFI Input/Output Kit This kit contains 4 extra input wires and 1 extra output wire that the base Terminator EFI harness does not contain.
Terminator EFI Input/Output Kit This kit contains 4 extra input wires and 1 extra output wire that the base Terminator EFI harness does not contain.
Part Number: 558-420
$52.69
Gen III HEMI Drive-By-Wire Harness - Early Pedal Gen III HEMI Drive-By-Wire Harness - Early Harness with the larger TYCO/AMP connector ('03-'07 cars, '03-'06 trucks) Dominator Only. Only the 0459 1847 factory DBW throttle body has been calibrated and approved for use with this harness.
Gen III HEMI Drive-By-Wire Harness - Early Pedal Gen III HEMI Drive-By-Wire Harness - Early Harness with the larger TYCO/AMP connector ('03-'07 cars, '03-'06 trucks) Dominator Only. Only the 0459 1847 factory DBW throttle body has been calibrated and approved for use with this harness.
Part Number: 558-417
$268.95
Holley EFI LS Main Harness to LS3-style MAP Sensor Adapter Adapter Harness
Holley EFI LS Main Harness to LS3-style MAP Sensor Adapter Adapter Harness
Part Number: 558-416
$40.21
Terminator Main Harness Replacement main wiring harness for Terminator EFI kits 550-405 and 550-406
Terminator Main Harness Replacement main wiring harness for Terminator EFI kits 550-405 and 550-406
Part Number: 558-414
$499.95
Dominator EFI GM Dual Drive-By-Wire Harness Dominator EFI GM Dual Drive-By-Wire Harness
Dominator EFI GM Dual Drive-By-Wire Harness Dominator EFI GM Dual Drive-By-Wire Harness
Part Number: 558-411
$368.95
Sealed USB Data Cable Holley EFI Sealed USB Cable 7'
Sealed USB Data Cable Holley EFI Sealed USB Cable 7'
Part Number: 558-409
$92.19
j2A, j2B, j3, j4 Connector & Pin Kit j2A, j2B, j3, j4 Connector & Pin Kit - Contains connectors & pins, but no wiring. for Dominator EFI
j2A, j2B, j3, j4 Connector & Pin Kit j2A, j2B, j3, j4 Connector & Pin Kit - Contains connectors & pins, but no wiring. for Dominator EFI
Part Number: 558-408
$219.95
Dominator EFI Multi Map Selector Dominator EFI Multi Map Selector
Dominator EFI Multi Map Selector Dominator EFI Multi Map Selector
Part Number: 558-407
$172.95
Holley EFI GM Drive-By-Wire Harness Terminator X MAX and Dominator EFI GM Drive-By-Wire Harness
Holley EFI GM Drive-By-Wire Harness Terminator X MAX and Dominator EFI GM Drive-By-Wire Harness
Part Number: 558-406
$249.95
GM 4L60/80E Transmission Harness GM 4L60/80E Transmission Harness - For 1996-2008 Transmissions only.
GM 4L60/80E Transmission Harness GM 4L60/80E Transmission Harness - For 1996-2008 Transmissions only.
Part Number: 558-405
$299.95
Dominator EFI Auxiliary Harness Dominator EFI Connector J4 Auxiliary Harness
Dominator EFI Auxiliary Harness Dominator EFI Connector J4 Auxiliary Harness
Part Number: 558-404
$224.95
Dominator EFI Auxiliary Harness Dominator EFI Connector J3 Auxiliary Harness
Dominator EFI Auxiliary Harness Dominator EFI Connector J3 Auxiliary Harness
Part Number: 558-403
$175.95
Dominator EFI Auxiliary Harness Dominator EFI Connector J2B Auxiliary Harness
Dominator EFI Auxiliary Harness Dominator EFI Connector J2B Auxiliary Harness
Part Number: 558-402
$175.95
Dominator EFI Auxiliary Harness Dominator EFI Connector J2A Auxiliary Harness
Dominator EFI Auxiliary Harness Dominator EFI Connector J2A Auxiliary Harness
Part Number: 558-401
$228.95
Connector J1A/B Input/Outputs Auxiliary Harness Connector J1A/B Inputs/Outputs Auxiliary Harness for Terminator X, HP, and Dominator EFI systems
Connector J1A/B Input/Outputs Auxiliary Harness Connector J1A/B Inputs/Outputs Auxiliary Harness for Terminator X, HP, and Dominator EFI systems
Part Number: 558-400
$127.95
HyperSpark Plug and Play Main Harness Not for Sniper 2 EFI Systems
HyperSpark Plug and Play Main Harness Not for Sniper 2 EFI Systems
Part Number: 558-328
$320.95
LS Coil Extension Harnesses Designed to extend your factory coil harness, allowing you to easily remote mount your LS ignition coils.
LS Coil Extension Harnesses Designed to extend your factory coil harness, allowing you to easily remote mount your LS ignition coils.
Part Number: 558-326
$126.95
Holley EFI Pro-Billet Ignition Adapter Adapter MSD Pro-Billet Distributors to Holley EFI Main Harnesses, for use with Terminator X EFI.
Holley EFI Pro-Billet Ignition Adapter Adapter MSD Pro-Billet Distributors to Holley EFI Main Harnesses, for use with Terminator X EFI.
Part Number: 558-325
$39.49
HyperSpark Ignition Adapter Adapters HyperSpark Distributors to Holley EFI Main Harnesses, for use with Terminator X EFI.
HyperSpark Ignition Adapter Adapters HyperSpark Distributors to Holley EFI Main Harnesses, for use with Terminator X EFI.
Part Number: 558-323
$46.09
Ford Coyote Ti-VCT Coil Harness (2015.5-2017) Ford Coyote Ti-VCT Coil Harness (2015.5-2017)
Ford Coyote Ti-VCT Coil Harness (2015.5-2017) Ford Coyote Ti-VCT Coil Harness (2015.5-2017)
Part Number: 558-322
$249.95
LS COIL HARNESSES Factory replacement coil harness for stock LS coils, does not fit LS1 or LS6 Coils.
LS COIL HARNESSES Factory replacement coil harness for stock LS coils, does not fit LS1 or LS6 Coils.
Part Number: 558-321
$199.95
Holley EFI Main Power Harness for Coyote Ti-VCT Applications Main Power Harness for use with Ti-VCT Coyote Applications
Holley EFI Main Power Harness for Coyote Ti-VCT Applications Main Power Harness for use with Ti-VCT Coyote Applications
Part Number: 558-319
$60.35
C-N-P Ignition Sub Harness “Big Wire” C-N-P Ignition Sub Harness
C-N-P Ignition Sub Harness “Big Wire” C-N-P Ignition Sub Harness
Part Number: 558-318
$286.95
Ford Coyote Coil Harness 2011 to 2015 Ford Coyote Coil Harness, For HP EFI & Dominator EFI
Ford Coyote Coil Harness 2011 to 2015 Ford Coyote Coil Harness, For HP EFI & Dominator EFI
Part Number: 558-317
$219.95
Ford 2V Modular Coil Harness 99-04 2 Valve Ford Modular Coil Harness, For HP EFI & Dominator EFI
Ford 2V Modular Coil Harness 99-04 2 Valve Ford Modular Coil Harness, For HP EFI & Dominator EFI
Part Number: 558-314
$231.95
HP Smart Coil Ignition Harness For use with Holley® HP and Dominator ECUs and other EFI systems
HP Smart Coil Ignition Harness For use with Holley® HP and Dominator ECUs and other EFI systems
Part Number: 558-312
$279.95
Gen III HEMI Coil Harness - Late Coils Gen III HEMI Coil Harness, Late Coils, for HP EFI & Dominator EFI
Gen III HEMI Coil Harness - Late Coils Gen III HEMI Coil Harness, Late Coils, for HP EFI & Dominator EFI
Part Number: 558-311
$199.95
Gen III HEMI Coil Harness - Early Coils Gen III HEMI Coil Harness, Early Coils, for HP EFI & Dominator EFI
Gen III HEMI Coil Harness - Early Coils Gen III HEMI Coil Harness, Early Coils, for HP EFI & Dominator EFI
Part Number: 558-310
$187.95
Main Power Harness Main Power Harness for Avenger EFI, HP EFI, & Dominator EFI
Main Power Harness Main Power Harness for Avenger EFI, HP EFI, & Dominator EFI
Part Number: 558-308
$104.95
Universal Coil On/Near Plug Harness For use with Holley® HP and Dominator ECUs and other EFI systems
Universal Coil On/Near Plug Harness For use with Holley® HP and Dominator ECUs and other EFI systems
Part Number: 558-307
$187.95
Universal Unterminated Ignition Harness Universal Unterminated Ignition Harness for HP EFI & Dominator EFI
Universal Unterminated Ignition Harness Universal Unterminated Ignition Harness for HP EFI & Dominator EFI
Part Number: 558-306
$119.55
Ford TFI Ignition Harness Ford TFI Ignition Harness for Avenger EFI, HP EFI & Dominator EFI
Ford TFI Ignition Harness Ford TFI Ignition Harness for Avenger EFI, HP EFI & Dominator EFI
Part Number: 558-305
$125.95
HEI GM Small Cap Ignition Harness HEI Ignition Harness for Avenger EFI, HP EFI & Dominator EFI
HEI GM Small Cap Ignition Harness HEI Ignition Harness for Avenger EFI, HP EFI & Dominator EFI
Part Number: 558-304
$59.25
Tach Input Ignition Adapter Tach Input Ignition Adapter
Tach Input Ignition Adapter Tach Input Ignition Adapter
Part Number: 558-302
$23.66
Holley EFI GM GEN V GDI Subharness Late LTx Engines
Holley EFI GM GEN V GDI Subharness Late LTx Engines
Part Number: 558-221
$149.95
Holley EFI GM GEN V GDI Subharness Early LTx Engines
Holley EFI GM GEN V GDI Subharness Early LTx Engines
Part Number: 558-220
$149.95
Injector Driver Harness Plug and Play with Dominator ECU
Injector Driver Harness Plug and Play with Dominator ECU
Part Number: 558-219
$312.95
Holley EFI EV6 Unterminated Injector Harness Kit EV6 Unterminated Injector Harness Kit
Holley EFI EV6 Unterminated Injector Harness Kit EV6 Unterminated Injector Harness Kit
Part Number: 558-216
$149.95
INJECTOR HARNESS - EARLY TRUCK LS MULTEC 2 INJECTOR HARNESS - EARLY TRUCK
INJECTOR HARNESS - EARLY TRUCK LS MULTEC 2 INJECTOR HARNESS - EARLY TRUCK
Part Number: 558-214
$274.95
Ford V8 Injector Harness Evenly spaced Ford V8 Injector Harness for Jetronic "Bosch EV1" style Injectors
Ford V8 Injector Harness Evenly spaced Ford V8 Injector Harness for Jetronic "Bosch EV1" style Injectors
Part Number: 558-213
$199.95
Ford V8 Injector Harness Evenly spaced Ford V8 Injector Harness for USCAR / EV6 style Injectors
Ford V8 Injector Harness Evenly spaced Ford V8 Injector Harness for USCAR / EV6 style Injectors
Part Number: 558-212
$194.95
Gen III HEMI V8 Injector Harness - Bosch/Jetronic and Holley injectors Gen III HEMI Injector Harness with Bosch/Jetronic and Holley injectors used for upgrades and racing for HP EFI & Dominator EFI
Gen III HEMI V8 Injector Harness - Bosch/Jetronic and Holley injectors Gen III HEMI Injector Harness with Bosch/Jetronic and Holley injectors used for upgrades and racing for HP EFI & Dominator EFI
Part Number: 558-211
$187.95
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