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Ignition & Add-On Harnesses
High Power IGN-1A Smart Coil Harness Kit for v8 Engines - Valve Cover Mount
From $249.95
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4th Gen F Body Plug-and-Play LSX Harness for Holley EFI / Haltech
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High Power IGN-1A Smart Coil Harness Kit for Holley EFI / Ford Modular & Coyote
From $259.95
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Holley EFI CAN Bus Splitter
From $36.95
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Accessories & Components
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ECU's & Controllers
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Injector Driver Module
From $392.95
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Universal EFI Interface Module
Regular price
$426.95
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Spark Plug Wire Sync Kit
Regular price
$110.95
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Holley EFI 8 Channel CAN EGT Kit
Regular price
$1,099
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Switch Panels
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Roll Bar Mount
Dash Mount
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Roll Bar Mount Switch Box - 8 Rocker, Pre-Wired
From $574.95
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Roll Bar Mount Switch Box - 11 Button, Pre-Wired
Regular price
$674.95
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Roll Bar Mount Switch Box - 9 Button, Pre-Wired
Regular price
$609.95
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Roll Bar Mount Switch Box - 7 Button, Pre-Wired
Regular price
$549.95
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Wiring Kits
Wiring Kits
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Fuse & Relay Systems
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Roll Bar Mount Switch Box - 8 Rocker, Pre-Wired
From $574.95
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Bosch Intercooler Pump Relay Harness
Regular price
$49.95
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Stage II HD Load Center - 11 Fuse 8 Relay
Regular price
$324.95
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Stage III HD Load Center - 14 Fuse 12 Relay
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$419.95
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PLEASE NOTE: Several of our products are built to order. Please contact before ordering if you have specific timeline needs with your build. Thank you!
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Accessory Harnesses
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Bosch 210 Denso Injector Harness for Holley EFI
Regular price
$129.95
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Bosch Intercooler Pump Relay Harness
Regular price
$49.95
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EV1 Injector Harness for Holley EFI
Regular price
$129.95
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Shock Travel Harness Kit
From $140
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LS Coil Harness Relocation Set - LS3 / Truck
From $139.95
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Plug-and-Play Harness Kit for Staged Injectors - Holley Dominator
From $89.95
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Plug-and-Play Driver Module Harness Kit for Staged Injectors
Regular price
$334.95
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Holley EFI Main Power Harness
From $51.95
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VariMax ZL1 Intercooler Pump Relay Harness
Regular price
$54.95
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LS Coil Harness Set - LS1, Rear Connection
Regular price
$139.95
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Holley J1A / J1B Input / Output Auxiliary Harness
Regular price
$77.13
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EV1 Injector Harness for GM LS & Ford Modular
Regular price
$94.95
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12 Channel CAN I/O Expander
From $354
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Spark Plug Wire Sync Kit
Regular price
$110.95
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CAN bus vNet Cable - MSD Power Grid to AEM CD Dash
Regular price
$104.95
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Multec / Delphi Injector Harness for GM LS
Regular price
$94.95
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EV6 / EV14 Injector Harness for GM LS & Ford Modular
Regular price
$94.95
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Bosch 210 / Denso Injector Harness for GM LS & Ford Modular
Regular price
$94.95
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