Special Offers

Replacement Holley EFI, Bosch Wide band Oxygen sensor. This sensor is a direct replacement for Holley HP, Dominator, Avenger and Terminator EFI systems. Each Sensor is hand calibrated to insure accurate readings when used in conjunction with your Holley EFI system. BrandHolley EFIEmission Code3Product TypeOxygen SensorPart Number554-101..

Plug and play for Holley Avenger, Terminator, HP, and Dominator ECU fuel and oil pressure inputs.Features:Plug and play for both fuel and oil pressure inputs with Holley EFI systems (Terminator systems monitor fuel pressure only)Stainless steel constructionComes with mating connector for custom configurationsLinear voltage output of 0.5-4.5 voltsBody Diameter7/8"Body Length2.558"BrandHolley EFIEmi..

Plug and play for Holley Avenger, Terminator, HP, and Dominator ECU fuel and oil pressure inputs. Features:Plug and play for both fuel and oil pressure inputs with Holley EFI systems (Terminator systems monitor fuel pressure only)Stainless steel constructionComes with mating connector for custom configurationsLinear voltage output of 0.5-4.5 voltsBody Diameter7/8"Body Length2.558"BrandHolley EFIE..

Body Diameter7/8"Body Length2.558"BrandHolley EFIEmission Code5Inlet Size1/8 inch NPTLinear voltage output.5 - 4.5 VoltsMaterialStainless SteelPressure Range0-1600 PSIProduct TypePressure Senser - Transducerreference voltage required5 VoltsPart Number554-104..

Whether your engine has forced induction or is naturally aspirated, these Holley MAP sensors will keep your engine performing at its best. They're available in 1, 2, and 3-bar models.BrandHolley EFIEmission Code5Product TypeMAP SensorPart Number554-107..

BrandHolley EFIEmission Code5Product TypeMAP SensorPart Number554-108..

High Current Nitrous Solenoid Driver for use with Holley EFIFeatures:40 Amp maximum current drawAmp Draw40 Amps MaximumBrandHolley EFIEmission Code3Product TypeHigh Current Driver - ModulePart Number554-111..

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..

High Current Water Methanol Solenoid Driver Features:drive Water/Meth Solenoids, etc.BrandHolley EFIEmission Code3Product TypeWater Methanol partPart Number554-115..

This sensor is designed to trigger from a ferrous metal (magnetic steel) target, such as Holley's 60-2 crank trigger wheels. It can also be used for a cam sensor trigger and other applications.BrandHolley EFIEmission Code5Product TypeHall Effect SensorPart Number554-117..

P/N 554-118 is designed as a drop-in sensor replacement for flying magnet crank trigger setups using a 3/4-16" threaded magnetic sensor. This sensor is a Hall Effect sensor, meaning it outputs a square wave signal, which is ideal for use with most Electronic Fuel Injection Systems. This sensor is to only be used with a trigger wheel with "flying magnets". It does not detect a ferrous steel target...

An EFI System so easy and powerful you'll think it's alive! Simply bolt it on, feed it a few basic answers and let Terminator EFI take control of your ride! Features:ECU onlyEasy to installNo computer experience requiredSimple multiple choice set–up wizardSelf–tunes while you driveUpgradable to complete laptop control without buying another ECUBrandHolley EFIEmission Code4Product TypeTerminator EC..

Replacement 1 bar MAP sensor for Terminator EFI.BrandHolley EFIEmission Code5Product TypeMAP SensorPart Number554-120..

Replacement Air Temperature Sensor for Terminator EFI.BrandHolley EFIEmission Code5Product TypeTemperature SensorPart Number554-121..

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..

Every racer around is well aware that the crank sensor is an integral part of the fuel injection system. Holley's EFI Crankshaft Signal Sensor is designed to generate an RPM input signal to the ECU when used in ferrous target crank trigger setups. This sensor is a Hall Effect sensor, meaning it outputs a digital square wave signal, which is ideal for use with most Electronic Fuel Injection Syste..

Holley EFI Cam Sync Signal is designed to generate a cam sync input signal to the ECU when used in flying magnet cam trigger setups. This sensor is a Hall Effect sensor, meaning it outputs a square wave signal, which is ideal for use with most electronic fuel injection systems. Features:3 wire hall-effect camshaft sensor, generates digital square-wave signalFor use with flying magnet targets only ..