Harnesses & Harness Adapters

Coil Power Tap IGN1A Smart Coils

$29.99

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Coil Power Tap LS1

$24.99

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Idle Air Control Adapter Harness - MPFI Mopar

$19.99

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Idle Air Control Adapter Harness - GM

$19.99

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Temporarily Out of Stock, Please Call to Order

Map Sensor Adapter Harness LS1/LS2 to LS3 - Short

$26.99

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Coolant Temp Extension Harness

$22.99

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Alternator Exciter Harness/Pigtail

$15.99

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Holley EFI MPFI 24X Bosch/Jetronic Injector for LS1/LS6, Part #558-500

$726.95

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On Sale

MSD Atomic EFI Install Kit for LS1 & LS6, Part #2955

MSRP: $217.00

Was: $217.00

Now: $204.95

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Racetronix LS1 to LS2 Knock Sensor Plug n' Play Conversion Harness

$29.95

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On Sale

GM Knock Sensor Harness for GM Gen III LS- Series V8 Engines, Part #12601822

MSRP: $67.64

Was: $67.64

Now: $54.99

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Holley Map Adapter LS1, LS2 to LS3, Part #558-416

$34.10

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Holley Fuel Injection GM Dual Drive By Wire Harness, Part #558-411

$271.95

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Holley Fuel Injection Drive By Wire Harness, Part #558-406

$209.95

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Holley Fuel Injection 4L60/80 Harness, Part #558-405

$235.95

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Holley Fuel Injection LSX Main To Holley Coils Harness Kit, Part #558-309

$99.95

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Holley Fuel Injection Parts, Main Power Harness, Part #558-308

$81.77

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Holley Fuel Injection Wiring Harness for LSX Engines, Part #HLY-558-201

$138.95

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Holley EFI Service Parts, LS2 Main Harness, Part #558-103

$532.95

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Holley LS1 Harness for HP And Dominator EFI, Part #558-102

$532.95

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Lingenfelter LS3 Map Sensor to LS2 LS1 Map Harness 24 Inch Long

$29.95

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