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Holley EFI
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Gen III 24x
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Ignition & Add-On Harnesses
High Power IGN-1A Smart Coil Harness Kit for v8 Engines - Valve Cover Mount
From $194.95
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Holley EFI Main Power Harness
From $69.95
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4th Gen F Body Plug-and-Play LSX Harness for Holley EFI
Regular price
$1,164.95
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Secondary Wideband O2 Harness - Holley EFI J2A
From $62.95
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Accessories & Components
Accessories & Components
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ECU's & Controllers
Sensors & Inputs
Ignition & Outputs
Loggers, Displays & Gauges
TCA-8 Eight Channel Thermocouple Amplifier EGT
Regular price
$549.95
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HPI8 High Power Igniter - 15A Eight Channel
From $402
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Switch Panels
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Roll Bar Mount
Dash Mount
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Roll Bar Mount Switch Box - 11 Button, Pre-Wired
Regular price
$708.95
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Roll Bar Mount Switch Box - 8 Rocker, Pre-Wired
Regular price
$603.95
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Roll Bar Mount Switch Box - 9 Button, Pre-Wired
Regular price
$640.95
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Roll Bar Mount Switch Box - 7 Rocker & E-Stop, Pre-Wired
Regular price
$603.95
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Wiring Kits
Wiring Kits
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Fuse & Relay Systems
Tools & DIY
Bosch Intercooler Pump Relay Harness
Regular price
$74.95
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VariMax ZL1 Intercooler Pump Relay Harness
Regular price
$79.95
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Basic HD Relay Center for Engine Management Systems
Regular price
$259.95
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Roll Bar Mount Switch Box - 11 Button, Pre-Wired
Regular price
$708.95
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Chassis Wiring
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99-06 Silverado
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Bosch Intercooler Pump Relay Harness
Regular price
$74.95
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VariMax ZL1 Intercooler Pump Relay Harness
Regular price
$79.95
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Basic HD Relay Center for Engine Management Systems
Regular price
$259.95
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Roll Bar Mount Switch Box - 11 Button, Pre-Wired
Regular price
$708.95
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Power Tap Harness for Holley EFI
From $14.95
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Roll Bar Mount Switch Box - 8 Rocker, Pre-Wired
Regular price
$603.95
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Stage II Bracket Car Relay Center - 14 Circuit / 8 Relay
Regular price
$341.95
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Roll Bar Mount Switch Box - 9 Button, Pre-Wired
Regular price
$640.95
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Coil On Plug Pin-In Harness
Regular price
$70.95
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Shock Travel Harness Kit
From $154.95
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Roll Bar Mount Switch Box - 7 Rocker & E-Stop, Pre-Wired
Regular price
$603.95
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Roll Bar Mount Switch Box - 6 Rocker & E-Stop, Pre-Wired
Regular price
$561.95
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VariMax High-Flow Intercooler Pump Relay Harness
Regular price
$78.95
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Filler Panel - 99-07 Silverado Radio Replacement Blank
Regular price
$49.95
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Roll Bar Mount Switch Box - 10 Button with E-Stop, Pre-Wired
Regular price
$708.95
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PCE-BLDC CWA150 Intercooler Pump Relay Harness
Regular price
$74.95
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Dominator EFI Multi Map Selector
Sold Out
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Dash Mount Switch Panel - 8 Rocker, Pre-Wired
Regular price
$384.95
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Stage I HD Load Center - 7 Fuse 6 Relay
Regular price
$259.95
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Dash Mount Switch Panel - 03-06 Silverado HVAC Replacement
From $324.95
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