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Wiring & Accessories

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-11%

Holley EFI GM GEN V GDI Sub Harness

SKU: GVMR_558-221

Regular price $155.95

Regular price ~~$175.95~~ Sale price $155.95
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-11%

Holley EFI GM GEN V GDI Sub Harness

SKU: GVMR_558-220

Regular price $158.95

Regular price ~~$178.95~~ Sale price $158.95
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-11%

Ford 7.3L Godzilla Main Harness for Smart Coils

SKU: GVMR_558-141

Regular price $531.95

Regular price ~~$598.95~~ Sale price $531.95
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-11%

Ford 7.3L Godzilla Main Harness for Stock Coils

SKU: GVMR_558-140

Regular price $519.95

Regular price ~~$584.95~~ Sale price $519.95
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-11%

Holley EFI LT4 Engine Main Harness

SKU: GVMR_558-130

Regular price $611.95

Regular price ~~$688.95~~ Sale price $611.95
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-11%

Holley EFI Gen V LT Engine Main Harness

SKU: GVMR_558-129

Regular price $611.95

Regular price ~~$688.95~~ Sale price $611.95
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-11%

Holley EFI Ford Foxbody Main Harness

SKU: GVMR_558-128

Regular price $584.95

Regular price ~~$658.95~~ Sale price $584.95
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-11%

Ford V8 Injector Harness

SKU: GVMR_558-213

Regular price $212.95

Regular price ~~$239.95~~ Sale price $212.95
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-11%

INJECTOR HARNESS - EARLY TRUCK

SKU: GVMR_558-214

Regular price $291.95

Regular price ~~$328.95~~ Sale price $291.95
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-11%

Gen III HEMI V8 Injector Harness - Bosch/Jetronic and Holley injectors

SKU: GVMR_558-211

Regular price $199.95

Regular price ~~$224.95~~ Sale price $199.95
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-11%

CAN EXTENSION HARNESS, 12FT

SKU: GVMR_558-426

Regular price $84.29

Regular price ~~$94.95~~ Sale price $84.29
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-11%

V8 over Manifold, Bosch Style Injector Harness

SKU: GVMR_558-200

Regular price $212.95

Regular price ~~$239.95~~ Sale price $212.95
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-11%

Holley EFI GM Drive-By-Wire Harness

SKU: GVMR_558-406

Regular price $259.95

Regular price ~~$292.95~~ Sale price $259.95
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-11%

Gen III Hemi Main Harness Early w/ TPS and Idle Air Control Connections

SKU: GVMR_558-115

Regular price $899.95

Regular price ~~$1,012.95~~ Sale price $899.95
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-11%

Holley EFI EV6 Unterminated Injector Harness Kit

SKU: GVMR_558-216

Regular price $158.95

Regular price ~~$178.95~~ Sale price $158.95
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-12%

CAN Extension Harness - 9''

SKU: GVMR_558-428

Regular price $56.25

Regular price ~~$63.95~~ Sale price $56.25
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-11%

Ford V8 Injector Harness

SKU: GVMR_558-212

Regular price $207.95

Regular price ~~$233.95~~ Sale price $207.95
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-11%

Gen III HEMI Main Harness Late w/ TPS and Idle Air Control Connections

SKU: GVMR_558-116

Regular price $849.95

Regular price ~~$956.95~~ Sale price $849.95
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-11%

Ford V8 Injector Harness

SKU: GVMR_558-209

Regular price $265.95

Regular price ~~$299.95~~ Sale price $265.95
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-11%

Universal MPFI Main Harness

SKU: GVMR_558-104

Regular price $571.95

Regular price ~~$643.95~~ Sale price $571.95
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Injector Driver Harness

SKU: GVMR_558-219

Regular price $331.95

Regular price ~~$373.95~~ Sale price $331.95
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Ford Coyote Drive-By-Wire Harness

SKU: GVMR_558-422

Regular price $299.95

Regular price ~~$337.95~~ Sale price $299.95
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Main Engine Harness for 24x LS w/ TBI

SKU: GVMR_558-111

Regular price $749.95

Regular price ~~$843.95~~ Sale price $749.95
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-12%

CAN Extension Harness - 4'

SKU: GVMR_558-424

Regular price $63.19

Regular price ~~$71.95~~ Sale price $63.19
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Holley EFI Transmission Control Harness - For 1996-2008 GM 4L60E and 4L80E

SKU: GVMR_558-405

Regular price $318.95

Regular price ~~$358.95~~ Sale price $318.95
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-11%

Ford 2V and 4V Modular Main Harness

SKU: GVMR_558-108

Regular price $849.95

Regular price ~~$956.95~~ Sale price $849.95
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LS2/3/7+ (58x/4x) Engine Main Harness

SKU: GVMR_558-103

Regular price $675.95

Regular price ~~$760.95~~ Sale price $675.95
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-11%

Terminator Main Harness

SKU: GVMR_558-414

Regular price $531.95

Regular price ~~$598.95~~ Sale price $531.95
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-12%

Terminator EFI Input/Output Kit

SKU: GVMR_558-420

Regular price $56.25

Regular price ~~$63.95~~ Sale price $56.25
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-12%

Holley EFI Main Power Harness for Coyote Ti-VCT Applications

SKU: GVMR_558-319

Regular price $64.35

Regular price ~~$72.95~~ Sale price $64.35
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Holley EFI Ford Coyote Ti-VCT Sub Harness (2011-2012)

SKU: GVMR_558-124

Regular price $289.95

Regular price ~~$326.95~~ Sale price $289.95
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Holley EFI Coyote Ti-VCT Main Harness for Holley EFI HP Smart Coils (2011-2017)

SKU: GVMR_558-122

Regular price $999.95

Regular price ~~$1,124.95~~ Sale price $999.95

Address:1164 Connell Rd, Ortonville, MI 48462

Phone:(517) 315-8940

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