Electrical

Sealed USB CableComes With ECU'sHO558-409558-4097' long sealed USB data cable. This cable is included with the purchase of an HP or Dominator ECU.

Crank/Cam Ignition HarnessFully TerminatedHO558-410558-410Fully terminated harness. Connects to Holley 60-2 crank sensor and GM Cam-Sync Distributo...

Auxiliary Harness - J1A/B Input/OutputSuit HP & Dominator EFIHO558-400558-400Great for applications requiring minimal Input/output wiring. 4 Ou...

Main Power Ignition HarnessSuit Avenger, HP & Dominator EFIHO558-308558-308Main power harness is required when purchasing Avenger, HP or Domina...

Universal 6 Cyl Injection HarnessSuit HP & Dominator EFIHO558-203558-203Universal "Y" style harness using standard Bosch style injector connectors

V8 Over Manifold Bosch Style Injection HarnessSuit Avenger, HP & Dominator EFIHO558-200558-200Universal "Y" style harness using standard Bosch ...

Ford Coyote Main HarnessSuit Holley HP EFI & Dominator EFIHO558-109558-109Main harness for 2011-present Ford Coyote (5.0L) Engines.

LS2/LS7 Main Wiring HarnessSuit HP & Dominator EFI With 58x Crank SensorHO558-103558-103Designed for 58x crank and 4x front mount cam sensor. C...

Ford 2V & 4V Modular Main HarnessSuit Holley HP EFI & Dominator EFIHO558-108558-108Main harness for 99-04 2 & 4 Valve Ford Modular (4.6...

LS1/LS6 Main Wiring HarnessSuit HP & Dominator EFI With 24x Crank SensorHO558-102558-102Designed for 24x crank and 1x rear mount cam sensor. Co...

Sniper EFI Hyperspark CoilBlackHO556-152556-152Do you need to upgrade your ignition system due to a recent Sniper EFI installation, but have no ide...

Crank Trigger KitSuit SB ChevHO556-110556-1108.5" 60-2 Crank Trigger Wheel

Sniper EFI Hyperspark CDI BoxSuit Sniper EFI KitsHO556-151556-151Do you need to upgrade your ignition system due to a recent Sniper EFI installatio...

Ignition Coil Pack "Coil-Near-Plug"Suit Holley HP and Dominator ECUs and other EFI systemsHO556-112556-112This coil is designed for use with Holley...

Ignition Coil PackSuit Holley EFIHO556-104556-104The Holley dual tower coils provide higher spark energy than even high power single racing coils, ...

GPS Digital Dash USB ModuleSuit HO553-109 & HO553-106 Digital DashHO554-140554-140Have you been searching for a reason to discard your old nois...

Dominator EFI ECU OnlyWith USB & SoftwareHO554-114554-114Dominator EFI Vehicle Management Systems are intended for all engine applications, fro...

HP EFI ECU OnlyWith USB Cable & SoftwareHO554-113554-113Looking for a plug and play alternative for your stock or built late model factory EFI ...

MAP Sensor5 Bar (72.5 PSI)HO554-108554-1085 Bar MAP sensor (0-520 kPa) Preconfigured for use in Holley HP and Dominator systems 1/8-27 NPT Thread

MAP Sensor3 Bar (43.5 PSI)HO554-107554-107Whether your engine has forced induction or is naturally aspirated, these Holley MAP sensors will keep yo...

S/S Pressure Sensor200 PSIHO554-103554-103Plug and play for Holley Avenger, Terminator, HP, and Dominator ECU fuel and oil pressure inputs. FEATURE...

Stainless Steel Pressure Sensor100 psiHO554-102554-102Plug and play for Holley Avenger, Terminator, HP, and Dominator ECU fuel and oil pressure inp...

Oxygen SensorLSU4 Bosch WidebandHO554-101554-101Replacement Holley EFI, Bosch Wide band Oxygen sensor. This sensor is a direct replacement for Holl...

Holley EFI Pro Dash 553-112 HO553-112 6.86" Screen Size HOLLEY EFI 6.86" PRO DASH Holley's new 6.86" Pro Dash delivers over 200 monitoring channels...