Collection: Wiring Harnesses
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EFI Injector Harness - Universal Unterminated - 558-204
Vendor:Holley EFIRegular price $230.95 USDRegular priceUnit price / per$230.95 USDSale price $230.95 USD
2300
10X
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Main Harness - Univesal Un-Terminated - 558-105
Vendor:Holley EFIRegular price $549.95 USDRegular priceUnit price / per$549.95 USDSale price $549.95 USD
5490
10X
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Main Wiring Harness LS2 & LS3 - 558-103
Vendor:Holley EFIRegular price $649.95 USDRegular priceUnit price / per$649.95 USDSale price $649.95 USD
6490
10X
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Injector Wiring Harness V8 EV6 Style Injectors - 558-201
Vendor:Holley EFIRegular price $182.95 USDRegular priceUnit price / per$182.95 USDSale price $182.95 USD
1820
10X
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I/O Adapter for Digital Dash - 558-432
Vendor:Holley EFIRegular price $161.95 USDRegular priceUnit price / per$161.95 USDSale price $161.95 USD
1610
10X
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Trans Wire Harness GM 4L60 Pre 2009 - 4L80 - 558-405
Vendor:Holley EFIRegular price $306.95 USDRegular priceUnit price / per$306.95 USDSale price $306.95 USD
3060
10X
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Drive By Wire Harness GM - 558-406
Vendor:Holley EFIRegular price $255.95 USDRegular priceUnit price / per$255.95 USDSale price $255.95 USD
2550
10X
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CAN Extension Harness 8ft Length - 558-425
Vendor:Holley EFIRegular price $67.49 USDRegular priceUnit price / per$67.49 USDSale price $67.49 USD
670
10X
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Injector Wiring Harness V8 Bosch Style Injectors - 558-200
Vendor:Holley EFIRegular price $204.95 USDRegular priceUnit price / per$204.95 USDSale price $204.95 USD
2040
10X
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Bench-Top EFI Test Harness - 558-127
Vendor:Holley EFIRegular price $236.95 USDRegular priceUnit price / per$236.95 USDSale price $236.95 USD
2360
10X
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Main Wiring Harness LS1 & LS6 - 558-102
Vendor:Holley EFIRegular price $649.95 USDRegular priceUnit price / per$649.95 USDSale price $649.95 USD
6490
10X
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J2B Auxiliary Harness Kit - 558-402
Vendor:Holley EFIRegular price $179.95 USDRegular priceUnit price / per$179.95 USDSale price $179.95 USD
1790
10X
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Wire Harness LS to SS Map Adapter - 558-467
Vendor:Holley EFIRegular price $36.90 USDRegular priceUnit price / per$36.90 USDSale price $36.90 USD
360
10X
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J1A/B Input/Output Connector - 558-400
Vendor:Holley EFIRegular price $130.95 USDRegular priceUnit price / per$130.95 USDSale price $130.95 USD
1300
10X
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Auxiliary Harness J2A Connector - 558-401
Vendor:Holley EFIRegular price $233.95 USDRegular priceUnit price / per$233.95 USDSale price $233.95 USD
2330
10X
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GM LS Coil Sub Harnesses - 558-321
Vendor:Holley EFIRegular price $204.95 USDRegular priceUnit price / per$204.95 USDSale price $204.95 USD
2040
10X
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Map Sensor Adapter LS1 & LS2 to LS3 - 558-416
Vendor:Holley EFIRegular price $41.22 USDRegular priceUnit price / per$41.22 USDSale price $41.22 USD
410
10X
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7-Pin Main Harness - Sniper TBI - 558-490
Vendor:Holley EFIRegular price $168.95 USDRegular priceUnit price / per$168.95 USDSale price $168.95 USD
1680
10X
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Wire Harness Kit - EFI Terminator I/O - 558-420
Vendor:Holley EFIRegular price $54.05 USDRegular priceUnit price / per$54.05 USDSale price $54.05 USD
540
10X
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Sub-Harness Mopar Gen-3 Hemi VVT & SRV - 558-132
Vendor:Holley EFIRegular price $167.95 USDRegular priceUnit price / per$167.95 USDSale price $167.95 USD
1670
10X