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  • EFI Systems
      EFI Systems
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    • Holley EFI
    • Haltech Elite
    • AEM Infinity
    • GM Factory ECU
      • Gen III 24x
      • Gen IV 58x
    • Ignition & Add-On Harnesses
    • High Power IGN-1A Smart Coil Harness Kit for v8 Engines - Valve Cover Mount
      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
      Holley EFI Main Power Harness
      From $69.95
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      4th Gen F Body Plug-and-Play LSX Harness for Holley EFI
      4th Gen F Body Plug-and-Play LSX Harness for Holley EFI
      Regular price $1,164.95
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      High Power IGN-1A Smart Coil Harness Kit for v8 Engines - Remote Mount Long Leads
      High Power IGN-1A Smart Coil Harness Kit for v8 Engines - Remote Mount Long Leads
      From $194.95
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  • Accessories & Components
      Accessories & Components
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    • ECU's & Controllers
    • Sensors & Inputs
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    • TCA-8 Eight Channel Thermocouple Amplifier EGT
      TCA-8 Eight Channel Thermocouple Amplifier EGT
      Regular price $549.95
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      HPI8 High Power Igniter - 15A Eight Channel
      HPI8 High Power Igniter - 15A Eight Channel
      From $402
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  • Switch Panels
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    • Roll Bar Mount Switch Box - 11 Button, Pre-Wired
      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
      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
      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
      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
      Bosch Intercooler Pump Relay Harness
      Regular price $74.95
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      VariMax ZL1 Intercooler Pump Relay Harness
      VariMax ZL1 Intercooler Pump Relay Harness
      Regular price $79.95
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      Basic HD Relay Center for Engine Management Systems
      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
      Roll Bar Mount Switch Box - 11 Button, Pre-Wired
      Regular price $708.95
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ecu Wiring DIY

Connector Kit - Holley ECU Driver Module Main Power
Connector Kit - Holley ECU Driver Module Main Power
Regular price $6.95
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Firewall Bulkhead Kit - Single Disconnect
Firewall Bulkhead Kit - Single Disconnect
Regular price $139.95
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USB Cable for Holley EFI & Emtron Shadow 8
USB Cable for Holley EFI & Emtron Shadow 8
Sold Out
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ECU Connector Kit - SuperSeal 1.0 34pos Key A, Holley J1A & More
ECU Connector Kit - SuperSeal 1.0 34pos Key A, Holley J1A & More
Regular price $30.95
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ECU Connector Kit - SuperSeal 1.0 26pos Key D, Holley J4 & More
ECU Connector Kit - SuperSeal 1.0 26pos Key D, Holley J4 & More
Regular price $36.95
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ECU Connector Kit - SuperSeal 1.0 26pos Key B, Holley J2B & More
ECU Connector Kit - SuperSeal 1.0 26pos Key B, Holley J2B & More
Regular price $34.95
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Connector Kit - Mate for Holley ECU Driver Module Main Power
Connector Kit - Mate for Holley ECU Driver Module Main Power
Regular price $8.95
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ECU Connector Kit - SuperSeal 1.0 34pos Key B, Holley J2A & More
ECU Connector Kit - SuperSeal 1.0 34pos Key B, Holley J2A & More
Regular price $32.95
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ECU Connector Kit - SuperSeal 1.0 26pos Key C, Holley J3 & More
ECU Connector Kit - SuperSeal 1.0 26pos Key C, Holley J3 & More
Regular price $34.95
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ECU Pin-In Wire Kit for SuperSeal 1.0 Connectors I/O
ECU Pin-In Wire Kit for SuperSeal 1.0 Connectors I/O
Regular price $149.95
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ECU Connector Kit - SuperSeal 1.0 26pos Key A, Holley J1B & More
ECU Connector Kit - SuperSeal 1.0 26pos Key A, Holley J1B & More
Regular price $27.95
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