Skip to content
  • EFI Systems
    • Holley EFI
    • Haltech Elite
    • AEM Infinity
    • GM Factory ECU
      • Gen III 24x
      • Gen IV 58x
    • Ignition & Add-On Harnesses
  • Accessories & Components
    • ECU's & Controllers
    • Sensors & Inputs
    • Ignition & Outputs
    • Loggers, Displays & Gauges
  • Switch Panels
    • Roll Bar Mount
    • Dash Mount
    • Vehicle Specific
  • Wiring Kits
    • Fuse & Relay Systems
    • Tools & DIY
  • More
    • Aparel & Merch
    • Installation Services
    • Garage Sale & Closeout
  • Account
Jolt Systems
Cart
  • EFI Systems
      EFI Systems
    • All
    • 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
      View
      Holley EFI Main Power Harness
      Holley EFI Main Power Harness
      From $69.95
      View
      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
      View
      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
      View
  • Accessories & Components
      Accessories & Components
    • All
    • ECU's & Controllers
    • Sensors & Inputs
    • Ignition & Outputs
    • Loggers, Displays & Gauges
    • TCA-8 Eight Channel Thermocouple Amplifier EGT
      TCA-8 Eight Channel Thermocouple Amplifier EGT
      Regular price $549.95
      View
      HPI8 High Power Igniter - 15A Eight Channel
      HPI8 High Power Igniter - 15A Eight Channel
      From $402
      View
  • Switch Panels
      Switch Panels
    • All
    • Roll Bar Mount
    • Dash Mount
    • Vehicle Specific
    • Roll Bar Mount Switch Box - 11 Button, Pre-Wired
      Roll Bar Mount Switch Box - 11 Button, Pre-Wired
      Regular price $708.95
      View
      Roll Bar Mount Switch Box - 8 Rocker, Pre-Wired
      Roll Bar Mount Switch Box - 8 Rocker, Pre-Wired
      Regular price $603.95
      View
      Roll Bar Mount Switch Box - 9 Button, Pre-Wired
      Roll Bar Mount Switch Box - 9 Button, Pre-Wired
      Regular price $640.95
      View
      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
      View
  • Wiring Kits
      Wiring Kits
    • All
    • Fuse & Relay Systems
    • Tools & DIY
    • Bosch Intercooler Pump Relay Harness
      Bosch Intercooler Pump Relay Harness
      Regular price $74.95
      View
      VariMax ZL1 Intercooler Pump Relay Harness
      VariMax ZL1 Intercooler Pump Relay Harness
      Regular price $79.95
      View
      Basic HD Relay Center for Engine Management Systems
      Basic HD Relay Center for Engine Management Systems
      Regular price $259.95
      View
      Roll Bar Mount Switch Box - 11 Button, Pre-Wired
      Roll Bar Mount Switch Box - 11 Button, Pre-Wired
      Regular price $708.95
      View
  • More
    • Aparel & Merch
    • Installation Services
    • Garage Sale & Closeout
Account
Item added to cart. View cart and check out.
WE'VE BEEN EXPERIENCING SEVERE DELAYS WITH GROUND ADVANTAGE SHIPPING. SELECT PRIORITY MAIL OR UPS FOR BEST BET OF RELIABILITY.

Featured Items

Bosch 210 Denso Injector Harness for Holley EFI
Bosch 210 Denso Injector Harness for Holley EFI
Regular price $137.95
View
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
View
High Power IGN-1A Smart Coil Harness Kit for Holley EFI / Ford Modular, Coyote, Godzilla
High Power IGN-1A Smart Coil Harness Kit for Holley EFI / Ford Modular, Coyote, Godzilla
From $202.95
View
Nexus R5 VCU
Nexus R5 VCU
Regular price $4,299
View
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
View
High Power IGN-1A Smart Coil Harness Kit for v8 Engines - Remote Mount Short Leads
High Power IGN-1A Smart Coil Harness Kit for v8 Engines - Remote Mount Short Leads
From $194.95
View
Vibration Isolator Mount Set
Vibration Isolator Mount Set
Sold Out
View
Holley EFI EZ Flex Fuel Harness E85
Holley EFI EZ Flex Fuel Harness E85
From $59.95
View
LSX Coil Conversion Harness Kit for Holley EFI / Ford Modular & Coyote
LSX Coil Conversion Harness Kit for Holley EFI / Ford Modular & Coyote
Regular price $156.95
View
High Power IGN-1A Smart Coil Harness Kit for Holley EFI / Late Model Hemi
High Power IGN-1A Smart Coil Harness Kit for Holley EFI / Late Model Hemi
From $282.95
View
Nexus R3 VCU
Nexus R3 VCU
Regular price $2,399
View
Holley EFI EZ Flex Fuel Harness E85 - With GM DR44 Alternator Control
Holley EFI EZ Flex Fuel Harness E85 - With GM DR44 Alternator Control
Regular price $69.95
View
Injector Harness for Blower EFI Manifold - Holley EFI
Injector Harness for Blower EFI Manifold - Holley EFI
Regular price $157.95
View

Jolt Systems, LLC

  • Search
  • Contact Us
  • FAQ
  • Terms of Sale
  • Terms of Service
  • Refund policy
  • Careers

Follow us

  • Facebook
  • Instagram
  • YouTube

Questions? Don't See What You're Looking For?

Call us! Custom high performance wiring is what we're all about. We're always more than happy to talk with customers on their specialized needs.

© 2025, Jolt Systems. Powered by Shopify
  • american express
  • apple pay
  • diners club
  • discover
  • google pay
  • master
  • paypal
  • shopify pay
  • visa