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These coils mount directly in place of factory style versions and accept the OEM connectors as well. Performace output is improved thanks to a careful selection of better materials and efficient winding ratios.BrandStreet FireEmission Code2Part Number55158..
This coil mounts directly in place of factory style versions. Performance output is improved thanks to a careful selection of better materials and efficient winding ratios.BrandStreet FireEmission Code2Part Number5524..
These new coils mount directly in place of the factory coils and accept the factory connectors. Spark energy is increased thanks to improved materials and windings that were spec'd by MSD engineering.Features:Bolt-on performanceFactory replacement coilBrandStreet FireEmission Code2Part Number5527..
These coils mount directly in place of factory style versions and accept the OEM connectors as well. Performace output is improved thanks to a careful selection of better materials and efficient winding ratios.BrandStreet FireEmission Code1Part Number5528..
These coils mount directly in place of factory style versions and accept the OEM connectors as well. Performace output is improved thanks to a careful selection of better materials and efficient winding ratios.BrandStreet FireEmission Code1Part Number5529..
The four channel coil driver module is used to drive a two wire "dumb" ignition coil. Such coils are typically used on Ford Modular and late model Chrysler HEMI engines. Holley EFI ECUs require this coil driver module when running two wire "dumb" coils. Each module can drive four coils, so two are required for an eight cylinder engine that uses eight coils. Included is the coil driver module, an i..
Looking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and..
Dominator® EFI Vehicle Management Systems are intended for all engine applications, from street to unlimited high-end racing applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have nearly unlimited capabilities to control any power adder, input, or output you can throw at them. Need to run a turbocharged, nitrous inje..
The eight channel coil driver module is a "dumb coil" driver module that plugs into the main harness, which is needed when running the factory coils. Contains two 4-channel drivers, requires on an eight cylinder engine.Features:Eight channelDrives two wire “Dumb Coils”Potted design allows installation in engine compartmentContains two 4-channel driversPlug and Play with 558-314, 558-315 and 558-31..
The four channel coil driver module is a "dumb coil" driver module that plugs into the main harness, which is needed when running the factory coils. Contains one 4-channel driver.Features:Four channelPotted design allows installation in engine compartmentBrandHolley EFIEmission Code5Product TypeHigh Current Driver - ModulePart Number554-123..
Introducing Coyote Twin Independent Variable Cam Timing Control from Holley EFI! Do you have a coyote crate engine going in your dream car? Is your weekend road race warrior powered by a coyote junkyard engine with locked cams? Unlock the full potential of your high revving power plant with the Holley EFI Plug and Play Coyote Ti-VCT Control Module.Features:Compatible with HP or Dominator EFITi-VCT..
Introducing the latest sensors to the Holley EFI line up – Current Transducers. These high-quality transducers can be easily installed to monitor the amp draw from any mission-critical component, such as fuel pumps, alternators, electric water pumps, or even inductive ignition coils. Both of the Holley EFI Current Transducers are dual range, meaning they can monitor both high and low amp current d..
Introducing the latest sensors to the Holley EFI line up – Current Transducers. These high-quality transducers can be easily installed to monitor the amp draw from any mission-critical component, such as fuel pumps, alternators, electric water pumps, or even inductive ignition coils. Both of the Holley EFI Current Transducers are dual range, meaning they can monitor both high and low amp current d..
This coil is designed for use with Holley® HP and Dominator ECUs, as well other EFI systems that can drive "smart" ignition coils. Although it is designed for high powered race applications, it can be used on street driven vehicles as well.Features:Peak Voltage – 44,000 VoltsPeak Output – 102 MjMaximum Battery Voltage 17.0 VoltsIncludes mating connector and pinsBrandHolley EFIEmission Code4Height1..
Do you need precision control over your ignition system? Would your combination benefit from Individual Cylinder Timing Control? Are you experiencing spark issues with your Stock Coils? Are you wanting to convert your Turbocharged Big Block Monstrosity to Coil-Near-Plug?! Problem solved, introducing the Holley EFI C-N-P Kit containing everything to convert your ignition system to Coil-Near-Plug! F..
Do you need precision control over your ignition system? Would your combination benefit from Individual Cylinder Timing Control? Are you experiencing spark issues with your Stock Coils? Are you wanting to convert your Turbocharged Big Block Monstrosity to Coil-Near-Plug?! Problem solved, introducing the Holley EFI Big-Wire C-N-P Kit containing everything you need to upgrade your ignition system to..
Main Harness for 99-04 2 & 4 Valve Ford Modular (4.6 & 5.4L) Engines for use with Holley Smart CoilsBrandHolley EFIEmission Code4Harness ApplicationFordHarness TypeMainProduct TypeFord Modular Main Engine HarnessPart Number558-113..
This harness provides a plug and play upgrade solution for those seeking to convert to Coil-On-Plug. Additionally we have pre-installed a Power Tap for easy access to 12v, 5v Reference, and Sensor Grounds.Features:Built in C-O-P HarnessAdditional 40 amp relay to power individual coils20awq gauge wire or larger!Plug and play with 558-312 or 558-318 Smart Coil Sub Harnesses.Dual CANbus Connectors fo..
This harness provides a plug and play upgrade solution for those seeking to convert to Coil-On-Plug. Additionally we have pre-installed a Power Tap for easy access to 12v, 5v Reference, and Sensor Grounds. The Ford MPFI C-O-P Main Harness has also been pre-terminated for the stock Pulse Width Modulated Idle Air Control motors commonly found on Fuel Injected Windsor 5.0L engines.Features:Built in C..
HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart Coils. They plug into Holley LSx plug and play main harnesses if one wants to replace factory LSx coils with Holley HP Smart Coils. If using a non-LSx main harness, purchase PN 558-307 for connectors, w..
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