{"title":"E.F.I. Systems","description":"","products":[{"product_id":"holley-efi-terminator-x-universal-mpfi-kit-550-936","title":"Holley EFI Terminator X Universal MPFI Kit 550-936","description":"\u003cdiv class=\"full_description\"\u003eTake control of your engine with Terminator X. Don't settle for a factory ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel strategies and the proven, race-winning technology of Holley EFI at a budget-friendly price. Terminator X features real-time fuel learn, high impedance injector drivers, an integrated 1bar MAP sensor, and 4 programmable inputs and outputs. The inputs and outputs are ideal for electric fans, boost control solenoids, progressive nitrous control, and much more. Terminator X comes fully loaded with base maps for common V8 engine combinations to get you out of the garage and on the road\/track fast. The 3.5\" touch screen LCD handheld contains an easy to use calibration wizard as well as tuning and gauge display functions. Also included is Holley EFI's industry-leading, easy to use software suite that allows full laptop access for advanced users. Whether you are building a budget beater or a boosted race car, Terminator X has the features and technology you need at a price that won't break the bank.\u003c\/div\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul class=\"productpage_list\"\u003e\n\u003cli\u003ePlug and play Domestic V8 engine control, such as conventional push rod Chevrolet and Chrysler engines\u003c\/li\u003e\n\u003cli\u003eIncludes EV1 Injector Harness\u003c\/li\u003e\n\u003cli\u003eHigh Impedance Injector Drivers will safely power most Stock injectors, and Holley EFI Injectors. Injector support chart provided in the instructions (Will not control Low Impedance Injectors)\u003c\/li\u003e\n\u003cli\u003eBosch LSU 4.9 wideband to relay AFR information to the ECU for accurate reading and precise tuning control\u003c\/li\u003e\n\u003cli\u003eBuilt in 1bar MAP Sensor with vacuum hose adapters included (1\/8th – ¼ and 3\/16ths)\u003c\/li\u003e\n\u003cli\u003eBoosted applications, you can disable the internal MAP sensor and utilize an external MAP sensor, harness comes with the connector terminated, allowing for easy installation\u003c\/li\u003e\n\u003cli\u003eMAP Sensor vacuum hose adapters (1\/8th – ¼ and 3\/16ths)\u003c\/li\u003e\n\u003cli\u003ePlug and plug ignition capability with Dual Sync and HyperSpark Distributors, adapter 558-323 required for HyperSpark Distributors\u003c\/li\u003e\n\u003cli\u003e4 Inputs – 12v, Ground, 5v, and Frequency for things such as additional pressure sensors, activation triggers for nitrous activation, or a trans brake\u003c\/li\u003e\n\u003cli\u003eBoost Control – Boost vs Time, Boost vs Gear, Boost vs RPM, Boost vs Speed, Boost Safeties\u003c\/li\u003e\n\u003cli\u003eNitrous Control – Single Channel of Wet or Dry, Progressive or Non-Progressive, Rich\/Lean Safeties, and target Closed Loop AFR\u003c\/li\u003e\n\u003cli\u003eAdvanced Tables – 4x 1D Tables, 1x 1D per Gear Table, 4x 2D Tables, 1x 2D per Gear Table can be used for any custom tables you can dream up, such as Flex Fuel Sensor Offset Table, or a custom fuel or oil pressure safety\u003c\/li\u003e\n\u003cli\u003eOn-Board Diagnostic LEDS for: ECU Power – Engine Run – Wideband Status – TPS Calibration – Crank Signal –Cam Signal. Allows you to identify any Critical engine issues at a glance\u003c\/li\u003e\n\u003cli\u003eThe included 3.5\" Touchscreen Handheld contains a calibration wizard, that allows you to quickly build a base tune for any domestic V8 engine. Additionally the handheld provides internal data-logging and a fully customizable gauge display\u003c\/li\u003e\n\u003cli\u003eThe compact ECU size allows you to mount it virtually anywhere, remember, diagnostic LEDS must face up\u003c\/li\u003e\n\u003cli\u003ePlug and play compatible with multiple Holley EFI accessories including our gauges, shift lights, various modules, and digital and pro dashes (Holley P\/N's 553-106, 553-111, and 553-112)\u003c\/li\u003e\n\u003cli\u003eFree EFI Tuning Software for complete control of your Terminator X power plant\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cyriously Slick Designs","offers":[{"title":"Default Title","offer_id":47290105987266,"sku":"550-936","price":1348.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/9231\/4818\/files\/Holley_EFI_Terminator_X_Universal_MPFI_Kit_550-936.avif?v=1779663186"},{"product_id":"holley-efi-terminator-x-max-universal-mpfi-kit-550-942","title":"Holley EFI Terminator X Max - Universal MPFI Kit 550-942","description":"\u003cdiv class=\"full_description\"\u003eTake control of your engine with Terminator X! Don't settle for a factory ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel strategies and the proven, race-winning technology of Holley EFI at a budget-friendly price! Terminator X features real-time fuel learn, high impedance injector drivers, an integrated 1bar MAP sensor, and 4 programmable inputs and outputs. The inputs and outputs are ideal for electric fans, boost control solenoids, progressive nitrous control, and much more. Terminator X comes fully loaded with base maps for common V8 engine combinations to get you out of the garage and on the road\/track fast. The 3.5\" touch screen LCD handheld contains an easy to use calibration wizard as well as tuning and gauge display functions. Also included is Holley EFI's industry-leading, easy to use software suite that allows full laptop access for advanced users. Whether you are building a budget beater or a boosted race car, Terminator X has the features and technology you need at a price that won't break the bank!\u003c\/div\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul class=\"productpage_list\"\u003e\n\u003cli\u003ePlug and play Domestic V8 engine control, such as conventional push rod Chevrolet and Chrysler engines.\u003c\/li\u003e\n\u003cli\u003eIncludes EV1 Injector Harness\u003c\/li\u003e\n\u003cli\u003eGM 4L60E\/80E Transmission Control Harness (Terminator X Max Only)\u003c\/li\u003e\n\u003cli\u003eHigh Impedance Injector Drivers will safely power most Stock injectors, and Holley EFI Injectors. Injector support chart provided in the instructions (Will not control Low Impedance Injectors)\u003c\/li\u003e\n\u003cli\u003eBosch LSU 4.9 wideband to relay AFR information to the ECU for accurate reading and precise tuning control.\u003c\/li\u003e\n\u003cli\u003eBuilt in 1bar MAP Sensor, vacuum hose adapters included (1\/8th – ¼ and 3\/16ths)\u003c\/li\u003e\n\u003cli\u003eBoosted applications, you can disable the internal MAP sensor, and utilize an external MAP Sensor, the harness comes with the connector terminated, making the install\u003c\/li\u003e\n\u003cli\u003eMAP Sensor vacuum hose adapters (1\/8th – ¼ and 3\/16ths)\u003c\/li\u003e\n\u003cli\u003ePlug and plug ignition capability with Dual Sync and HyperSpark Distributors, adapter 558-323 required for HyperSpark Distributors.\u003c\/li\u003e\n\u003cli\u003e4 Inputs – 12v, Ground, 5v, and Frequency, for things such as additional pressure sensors, or activation triggers for nitrous activation, or a trans brake\u003c\/li\u003e\n\u003cli\u003eBoost Control – Boost vs Time, Boost vs Gear, Boost vs RPM, Boost vs Speed, Boost Safeties\u003c\/li\u003e\n\u003cli\u003eNitrous Control – Single Channel of Wet or Dry, Progressive or Non-Progressive, Rich\/Lean Safeties, and target Closed Loop AFR\u003c\/li\u003e\n\u003cli\u003eAdvanced Tables – 4x 1D Tables, 1x 1D per Gear Table, 4x 2D Tables, 1x 2D per Gear Table, can be used for any custom tables you can dream up, such as Flex Fuel Sensor Offset Table, or a custom fuel or oil pressure safety!\u003c\/li\u003e\n\u003cli\u003eOn-Board Diagnostic LEDS for: ECU Power – Engine Run – Wideband Status – TPS Calibration – Crank Signal –Cam Signal. Allow you to identify any Critical engine issues at a glance\u003c\/li\u003e\n\u003cli\u003eThe included 3.5\" Touchscreen Handheld contains a calibration wizard, that allows you to quickly build a base tune for any domestic V8 engine. Additionally the handheld provides internal data-logging and a fully customizable gauge display.\u003c\/li\u003e\n\u003cli\u003eThe compact ECU size allows you to mount it virtually anywhere. Remember, diagnostic LEDS must face up!\u003c\/li\u003e\n\u003cli\u003ePlug and play compatible with multiple Holley EFI accessories including our gauges, shift lights, various modules, and digital and pro dashes (Holley P\/N's 553-106, 553-111, and 553-112)\u003c\/li\u003e\n\u003cli\u003eFree EFI Tuning Software for complete control of your Terminator X power plant\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cyriously Slick Designs","offers":[{"title":"Default Title","offer_id":47290111000770,"sku":"550-942","price":1708.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/9231\/4818\/files\/Holley_EFI_Terminator_X_Max_Universal_MPFI_Kit_550-942.avif?v=1779663125"},{"product_id":"holley-efi-terminator-x-max-universal-mpfi-kit-550-950","title":"Holley EFI Terminator X Max - Universal MPFI Kit 550-950","description":"\u003cdiv class=\"full_description\"\u003eTake control of your engine with Terminator X! Don't settle for a factory ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel strategies and the proven, race-winning technology of Holley EFI at a budget-friendly price! Terminator X features real-time fuel learn, high impedance injector drivers, an integrated 1bar MAP sensor, and 4 programmable inputs and outputs. The inputs and outputs are ideal for electric fans, boost control solenoids, progressive nitrous control, and much more. Terminator X comes fully loaded with base maps for common V8 engine combinations to get you out of the garage and on the road\/track fast. The 3.5\" touch screen LCD handheld contains an easy to use calibration wizard as well as tuning and gauge display functions. Also included is Holley EFI's industry-leading, easy to use software suite that allows full laptop access for advanced users. Whether you are building a budget beater or a boosted race car, Terminator X has the features and technology you need at a price that won't break the bank!\u003c\/div\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul class=\"productpage_list\"\u003e\n\u003cli\u003ePlug and play Domestic V8 engine control, such as conventional push rod Chevrolet and Chrysler engines.\u003c\/li\u003e\n\u003cli\u003eIncludes EV1 Injector Harness\u003c\/li\u003e\n\u003cli\u003eGM DBW Throttle Body Control Harness (Terminator X Max Only)\u003c\/li\u003e\n\u003cli\u003eHigh Impedance Injector Drivers will safely power most Stock injectors, and Holley EFI Injectors. Injector support chart provided in the instructions (Will not control Low Impedance Injectors)\u003c\/li\u003e\n\u003cli\u003eBosch LSU 4.9 wideband to relay AFR information to the ECU for accurate reading and precise tuning control.\u003c\/li\u003e\n\u003cli\u003eBuilt in 1bar MAP Sensor, vacuum hose adapters included (1\/8th – ¼ and 3\/16ths)\u003c\/li\u003e\n\u003cli\u003eBoosted applications, you can disable the internal MAP sensor, and utilize an external MAP Sensor, the harness comes with the connector terminated, making the install\u003c\/li\u003e\n\u003cli\u003eMAP Sensor vacuum hose adapters (1\/8th – ¼ and 3\/16ths)\u003c\/li\u003e\n\u003cli\u003ePlug and plug ignition capability with Dual Sync and HyperSpark Distributors, adapter 558-323 required for HyperSpark Distributors.\u003c\/li\u003e\n\u003cli\u003e4 Inputs – 12v, Ground, 5v, and Frequency, for things such as additional pressure sensors, or activation triggers for nitrous activation, or a trans brake\u003c\/li\u003e\n\u003cli\u003eBoost Control – Boost vs Time, Boost vs Gear, Boost vs RPM, Boost vs Speed, Boost Safeties\u003c\/li\u003e\n\u003cli\u003eNitrous Control – Single Channel of Wet or Dry, Progressive or Non-Progressive, Rich\/Lean Safeties, and target Closed Loop AFR\u003c\/li\u003e\n\u003cli\u003eAdvanced Tables – 4x 1D Tables, 1x 1D per Gear Table, 4x 2D Tables, 1x 2D per Gear Table, can be used for any custom tables you can dream up, such as Flex Fuel Sensor Offset Table, or a custom fuel or oil pressure safety!\u003c\/li\u003e\n\u003cli\u003eOn-Board Diagnostic LEDS for: ECU Power – Engine Run – Wideband Status – TPS Calibration – Crank Signal –Cam Signal. Allow you to identify any Critical engine issues at a glance\u003c\/li\u003e\n\u003cli\u003eThe included 3.5\" Touchscreen Handheld contains a calibration wizard, that allows you to quickly build a base tune for any LS engine. Additionally the handheld provides internal data-logging and a fully customizable gauge display.\u003c\/li\u003e\n\u003cli\u003eThe compact ECU size allows you to mount it virtually anywhere. Remember, diagnostic LEDS must face up!\u003c\/li\u003e\n\u003cli\u003ePlug and play compatible with multiple Holley EFI accessories including our gauges, shift lights, various modules, and digital and pro dashes (Holley P\/N's 553-106, 553-111, and 553-112)\u003c\/li\u003e\n\u003cli\u003eFree EFI Tuning Software for complete control of your Terminator X power plant\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cyriously Slick Designs","offers":[{"title":"Default Title","offer_id":47290111328450,"sku":"550-950","price":1708.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/9231\/4818\/files\/Holley_EFI_Terminator_X_Max_Universal_MPFI_Kit_550-950.avif?v=1779663074"},{"product_id":"holley-efi-terminator-x-max-universal-mpfi-kit-550-959","title":"Holley EFI Terminator X Max - Universal MPFI Kit 550-959","description":"\u003cdiv class=\"full_description\"\u003eTake control of your engine with Terminator X! Don't settle for a factory ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel strategies and the proven, race-winning technology of Holley EFI at a budget-friendly price! Terminator X features real-time fuel learn, high impedance injector drivers, an integrated 1bar MAP sensor, and 4 programmable inputs and outputs. The inputs and outputs are ideal for electric fans, boost control solenoids, progressive nitrous control, and much more. Terminator X comes fully loaded with base maps for common V8 engine combinations to get you out of the garage and on the road\/track fast. The 3.5\" touch screen LCD handheld contains an easy to use calibration wizard as well as tuning and gauge display functions. Also included is Holley EFI's industry-leading, easy to use software suite that allows full laptop access for advanced users. Whether you are building a budget beater or a boosted race car, Terminator X has the features and technology you need at a price that won't break the bank!\u003c\/div\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul class=\"productpage_list\"\u003e\n\u003cli\u003ePlug and play Domestic V8 engine control, such as conventional push rod Chevrolet and Chrysler engines.\u003c\/li\u003e\n\u003cli\u003eIncludes EV1 Injector Harness\u003c\/li\u003e\n\u003cli\u003eGM DBW Throttle Body Control Harness (Terminator X Max Only)\u003c\/li\u003e\n\u003cli\u003eGM 4L60\/4L80E Transmission Control Harness (Terminator X Max Only)\u003c\/li\u003e\n\u003cli\u003eHigh Impedance Injector Drivers will safely power most Stock injectors, and Holley EFI Injectors. Injector support chart provided in the instructions (Will not control Low Impedance Injectors)\u003c\/li\u003e\n\u003cli\u003eBosch LSU 4.9 wideband to relay AFR information to the ECU for accurate reading and precise tuning control.\u003c\/li\u003e\n\u003cli\u003eBuilt in 1bar MAP Sensor, vacuum hose adapters included (1\/8th – ¼ and 3\/16ths)\u003c\/li\u003e\n\u003cli\u003eBoosted applications, you can disable the internal MAP sensor, and utilize an external MAP Sensor, the harness comes with the connector terminated, making the install\u003c\/li\u003e\n\u003cli\u003eMAP Sensor vacuum hose adapters (1\/8th – ¼ and 3\/16ths)\u003c\/li\u003e\n\u003cli\u003ePlug and plug ignition capability with Dual Sync and HyperSpark Distributors, adapter 558-323 required for HyperSpark Distributors.\u003c\/li\u003e\n\u003cli\u003e4 Inputs – 12v, Ground, 5v, and Frequency, for things such as additional pressure sensors, or activation triggers for nitrous activation, or a trans brake\u003c\/li\u003e\n\u003cli\u003eBoost Control – Boost vs Time, Boost vs Gear, Boost vs RPM, Boost vs Speed, Boost Safeties\u003c\/li\u003e\n\u003cli\u003eNitrous Control – Single Channel of Wet or Dry, Progressive or Non-Progressive, Rich\/Lean Safeties, and target Closed Loop AFR\u003c\/li\u003e\n\u003cli\u003eAdvanced Tables – 4x 1D Tables, 1x 1D per Gear Table, 4x 2D Tables, 1x 2D per Gear Table, can be used for any custom tables you can dream up, such as Flex Fuel Sensor Offset Table, or a custom fuel or oil pressure safety!\u003c\/li\u003e\n\u003cli\u003eOn-Board Diagnostic LEDS for: ECU Power – Engine Run – Wideband Status – TPS Calibration – Crank Signal –Cam Signal. Allow you to identify any Critical engine issues at a glance\u003c\/li\u003e\n\u003cli\u003eThe included 3.5\" Touchscreen Handheld contains a calibration wizard, that allows you to quickly build a base tune for any LS engine. Additionally the handheld provides internal data-logging and a fully customizable gauge display.\u003c\/li\u003e\n\u003cli\u003eThe compact ECU size allows you to mount it virtually anywhere. Remember, diagnostic LEDS must face up!\u003c\/li\u003e\n\u003cli\u003ePlug and play compatible with multiple Holley EFI accessories including our gauges, shift lights, various modules, and digital and pro dashes (Holley P\/N's 553-106, 553-111, and 553-112)\u003c\/li\u003e\n\u003cli\u003eFree EFI Tuning Software for complete control of your Terminator X power plant\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cyriously Slick Designs","offers":[{"title":"Default Title","offer_id":47290112803010,"sku":"550-959","price":1888.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/9231\/4818\/files\/Holley_EFI_Terminator_X_Max_Universal_MPFI_Kit_550-959.avif?v=1779663019"},{"product_id":"hp-efi-ecu-harness-kits-550-604","title":"HP EFI ECU \u0026 Universal Multi Port Harness Kits Bosch 550-604","description":"\u003cdiv class=\"full_description\"\u003eLooking 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 ignition of your engine along with additional controls for nitrous, boost or water meth.\u003c\/div\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul class=\"productpage_list\"\u003e\n\u003cli\u003eLean or rich safety cutoff\u003c\/li\u003e\n\u003cli\u003e1-5 Bar MAP sensor capability\u003c\/li\u003e\n\u003cli\u003eInternal data-logging standard with a huge 2GB of memory\u003c\/li\u003e\n\u003cli\u003eDedicated fuel and oil pressure inputs\u003c\/li\u003e\n\u003cli\u003eControls both stepper and PWM Idle Air Control (IAC) motors\u003c\/li\u003e\n\u003cli\u003eSpeed density, Alpha-N, or combination fueling strategies\u003c\/li\u003e\n\u003cli\u003eAllows for use of common OEM sensors as well as customer sensor calibration input\u003c\/li\u003e\n\u003cli\u003eWorks with 4, 6, 8 cylinder engines\u003c\/li\u003e\n\u003cli\u003eEight channel Distributorless Ignition (DIS)outputs capable of directly driving “Smart” ignition coils or Holley DIS coils. Will drive 2 wire coils with the addition of PN 554-112 high current coil driver module\u003c\/li\u003e\n\u003cli\u003e4 Programmable high or low Pulse Width Modulated (PWM) outputs and 4 fully configurable inputs can be configured for use\u003c\/li\u003e\n\u003cli\u003eSealed automotive and marine grade connectors\u003c\/li\u003e\n\u003cli\u003eTwo channel knock control sensor Inputs for both one or two wire knock sensors\u003c\/li\u003e\n\u003cli\u003e4 Stage progressive nitrous control\u003c\/li\u003e\n\u003cli\u003eIntegrated Water\/Methanol injection control\u003c\/li\u003e\n\u003cli\u003eEight sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 16 low or high impedance injectors as a standard feature. Multiple staged injector strategies\u003c\/li\u003e\n\u003cli\u003eSelf-tuning fuel table strategy greatly simplifies tuning process\u003c\/li\u003e\n\u003cli\u003eFully featured nitrous control eliminates the need for a separate nitrous controller device\u003c\/li\u003e\n\u003cli\u003eUnique lb\/hr based fueling strategy greatly simplifies and commonizes tuning\u003c\/li\u003e\n\u003cli\u003eECU is fully potted and can be mounted in the engine compartment or interior\u003c\/li\u003e\n\u003cli\u003eAdvanced idle, closed loop, and enrichment strategies allow for very stable operation\u003c\/li\u003e\n\u003cli\u003eIndividual cylinder fuel and spark control allows you to unlock your engine’s potential\u003c\/li\u003e\n\u003cli\u003eUses Holley Water\/Meth solenoids specially designed and calibrated for use with this EFI system to allow the user to enter Water\/Meth flow as a percentage of fuel injector flow for Water\/Meth tuning precision unmatched in the industry\u003c\/li\u003e\n\u003cli\u003e4 Stage nitrous oxide control\u003c\/li\u003e\n\u003cli\u003eFull timing retard\/control configurability per stage based on RPM or time\u003c\/li\u003e\n\u003cli\u003eProgressive control based on time, RPM, or boost, requires part # 554-111\u003c\/li\u003e\n\u003cli\u003eTurbo boost control\u003c\/li\u003e\n\u003cli\u003eIntegrated single channel wide band oxygen sensor control. Works with NTK or Bosch sensors\u003c\/li\u003e\n\u003cli\u003eCan be configured “Wet” or “Dry” with closed loop feedback\u003c\/li\u003e\n\u003cli\u003eIgnition Plug and Play with GM HEI, Ford TFI, magnetic and hall effect trigger, and other ignition systems. New Plug and Play applications in process. Custom settings can be configured to allow many other applications\u003c\/li\u003e\n\u003cli\u003eOptional 5.7” full-color touchscreen LCD allows easy on-the-fly tuning, data-logging or can be used as an easy to see graphical gauge panel\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cyriously Slick Designs","offers":[{"title":"Default Title","offer_id":47290112901314,"sku":"550-604","price":2347.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/9231\/4818\/files\/Holley_HP_EFI_ECU_Universal_Multi_Port_Harness_Kit_Bosch_550-604.avif?v=1779662964"},{"product_id":"hp-efi-ecu-harness-kits-550-604n","title":"HP EFI ECU \u0026 Universal Multi Port Harness Kits NTK 550-604N","description":"\u003cdiv class=\"full_description\"\u003eLooking 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 ignition of your engine along with additional controls for nitrous, boost or water meth.\u003c\/div\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul class=\"productpage_list\"\u003e\n\u003cli\u003eAdvanced idle, closed loop, and enrichment strategies allow for very stable operation\u003c\/li\u003e\n\u003cli\u003eUnique lb\/hr based fueling strategy greatly simplifies and commonizes tuning\u003c\/li\u003e\n\u003cli\u003eIgnition Plug and Play with GM HEI, Ford TFI, magnetic and hall effect trigger, and other ignition systems. New Plug and Play applications in process. Custom settings can be configured to allow many other applications\u003c\/li\u003e\n\u003cli\u003eTwo channel knock control sensor Inputs for both one or two wire knock sensors\u003c\/li\u003e\n\u003cli\u003eSpeed density, Alpha-N, or combination fueling strategies\u003c\/li\u003e\n\u003cli\u003eECU is fully potted and can be mounted in the engine compartment or interior\u003c\/li\u003e\n\u003cli\u003eFully featured nitrous control eliminates the need for a separate nitrous controller device\u003c\/li\u003e\n\u003cli\u003eLean or rich safety cutoff\u003c\/li\u003e\n\u003cli\u003eInternal data-logging standard with a huge 2GB of memory\u003c\/li\u003e\n\u003cli\u003e4 Stage progressive nitrous control\u003c\/li\u003e\n\u003cli\u003eWorks with 4, 6, 8 cylinder engines\u003c\/li\u003e\n\u003cli\u003e4 Stage nitrous oxide control\u003c\/li\u003e\n\u003cli\u003e4 Programmable high or low Pulse Width Modulated (PWM) outputs and 4 fully configurable inputs can be configured for use\u003c\/li\u003e\n\u003cli\u003e1-5 Bar MAP sensor capability\u003c\/li\u003e\n\u003cli\u003eControls both stepper and PWM Idle Air Control (IAC) motors\u003c\/li\u003e\n\u003cli\u003eFull timing retard\/control configurability per stage based on RPM or time\u003c\/li\u003e\n\u003cli\u003eAllows for use of common OEM sensors as well as customer sensor calibration input\u003c\/li\u003e\n\u003cli\u003eSealed automotive and marine grade connectors\u003c\/li\u003e\n\u003cli\u003eIndividual cylinder fuel and spark control allows you to unlock your engine’s potential\u003c\/li\u003e\n\u003cli\u003eCan be configured “Wet” or “Dry” with closed loop feedback\u003c\/li\u003e\n\u003cli\u003eIntegrated Water\/Methanol injection control\u003c\/li\u003e\n\u003cli\u003eIntegrated single channel wide band oxygen sensor control. Works with NTK or Bosch sensors\u003c\/li\u003e\n\u003cli\u003eProgressive control based on time, RPM, or boost, requires part # 554-111\u003c\/li\u003e\n\u003cli\u003eUses Holley Water\/Meth solenoids specially designed and calibrated for use with this EFI system to allow the user to enter Water\/Meth flow as a percentage of fuel injector flow for Water\/Meth tuning precision unmatched in the industry\u003c\/li\u003e\n\u003cli\u003eTurbo boost control\u003c\/li\u003e\n\u003cli\u003eEight channel Distributorless Ignition (DIS)outputs capable of directly driving “Smart” ignition coils or Holley DIS coils. Will drive 2 wire coils with the addition of PN 554-112 high current coil driver module\u003c\/li\u003e\n\u003cli\u003eDedicated fuel and oil pressure inputs\u003c\/li\u003e\n\u003cli\u003eSelf-tuning fuel table strategy greatly simplifies tuning process\u003c\/li\u003e\n\u003cli\u003eOptional 5.7” full-color touchscreen LCD allows easy on-the-fly tuning, data-logging or can be used as an easy to see graphical gauge panel\u003c\/li\u003e\n\u003cli\u003eEight sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 16 low or high impedance injectors as a standard feature. Multiple staged injector strategies\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cyriously Slick Designs","offers":[{"title":"Default Title","offer_id":47290114670786,"sku":"550-604N","price":2869.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/9231\/4818\/files\/Holley_HP_EFI_ECU_Universal_Multi_Port_Harness_Kit_NTK_550-604N.avif?v=1779662897"},{"product_id":"hp-efi-ecu-harness-kits-550-605","title":"HP EFI ECU \u0026 Unterminated Harness Kits Bosch 550-605","description":"\u003cdiv class=\"full_description\"\u003eLooking 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 ignition of your engine along with additional controls for nitrous, boost or water meth.\u003c\/div\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul class=\"productpage_list\"\u003e\n\u003cli\u003e1-5 Bar MAP sensor capability\u003c\/li\u003e\n\u003cli\u003eFull timing retard\/control configurability per stage based on RPM or time\u003c\/li\u003e\n\u003cli\u003eOption for VE based fueling strategy\u003c\/li\u003e\n\u003cli\u003e4 Stage nitrous oxide control\u003c\/li\u003e\n\u003cli\u003eECU is fully potted and can be mounted in the engine compartment or interior\u003c\/li\u003e\n\u003cli\u003eDedicated fuel and oil pressure inputs\u003c\/li\u003e\n\u003cli\u003eIntegrated single channel wide band oxygen sensor control. Works with NTK or Bosch sensors\u003c\/li\u003e\n\u003cli\u003eCustom settings can be configured to allow many other applications\u003c\/li\u003e\n\u003cli\u003eIgnition Plug and Play with GM 24x and 58x LSx engines, GM HEI, Ford TFI, magnetic and hall effect trigger, and other ignition systems. New Plug and Play applications in process.\u003c\/li\u003e\n\u003cli\u003eFully featured nitrous control eliminates the need for a separate nitrous controller device\u003c\/li\u003e\n\u003cli\u003eEight channel Distributorless Ignition (DIS)outputs capable of directly driving “Smart” ignition coils or Holley DIS coils. Will drive 2 wire coils with the addition of PN 554-112 high current coil driver module\u003c\/li\u003e\n\u003cli\u003eConfigurable User Password Protection\u003c\/li\u003e\n\u003cli\u003eWorks with 4, 6, 8 cylinder engines\u003c\/li\u003e\n\u003cli\u003eFuel Map and Learn Function Smoothing\u003c\/li\u003e\n\u003cli\u003eFEATURES\u003c\/li\u003e\n\u003cli\u003ePlug and Play control of factory GM 24x and 58x LSx engines\u003c\/li\u003e\n\u003cli\u003eInternal data-logging standard with a huge 2GB of memory\u003c\/li\u003e\n\u003cli\u003eTwo channel knock control sensor Inputs for both one or two wire knock sensors\u003c\/li\u003e\n\u003cli\u003eProgressive control based on time, RPM, or boost, requires part # 554-111\u003c\/li\u003e\n\u003cli\u003eIntegrated Boost Control - Boost vs Time, Boost vs Gear (Time or RPM), Boost vs RPM, Boost vs Speed, Launch control. Boost launch builder, Over-boost safeties, Boost scramble\u003c\/li\u003e\n\u003cli\u003eSpeed density, Alpha-N, or combination fueling strategies\u003c\/li\u003e\n\u003cli\u003eLean or rich safety cutoff\u003c\/li\u003e\n\u003cli\u003eData Logger. Scalable axes, Smoothing, Multiple graph view ability, Pre-defined notes fields and many more\u003c\/li\u003e\n\u003cli\u003eSealed automotive and marine grade connectors\u003c\/li\u003e\n\u003cli\u003eIntegrated Water\/Methanol injection control\u003c\/li\u003e\n\u003cli\u003eOptional 5.7” full-color touchscreen LCD allows easy on-the-fly tuning,data-logging or can be used as an easy to see graphical gauge panel\u003c\/li\u003e\n\u003cli\u003eAllows for use of common OEM sensors as well as customer sensor calibration input\u003c\/li\u003e\n\u003cli\u003e4 Programmable high or low Pulse Width Modulated (PWM) outputs and 4 fully configurable inputs can be configured for use\u003c\/li\u003e\n\u003cli\u003eCan be configured “Wet” or “Dry” with closed loop feedback\u003c\/li\u003e\n\u003cli\u003eNEW V2 SOFTWARE FEATURES\u003c\/li\u003e\n\u003cli\u003eControls both stepper and PWM Idle Air Control (IAC) motors\u003c\/li\u003e\n\u003cli\u003eTurbo boost control\u003c\/li\u003e\n\u003cli\u003eAdvanced idle, closed loop, and enrichment strategies allow for very stable operation\u003c\/li\u003e\n\u003cli\u003eEight sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 16 low or high impedance injectors as a standard feature. Multiple staged injector strategies\u003c\/li\u003e\n\u003cli\u003e“Quick Start” ignition and fueling strategy for LS x Engines\u003c\/li\u003e\n\u003cli\u003e“Quick Start” fueling for all engines\u003c\/li\u003e\n\u003cli\u003eUnique lb\/hr based fueling strategy greatly simplifies and commonizes tuning\u003c\/li\u003e\n\u003cli\u003eFully Configurable lap top Gauge Panel\u003c\/li\u003e\n\u003cli\u003eStrip Chart Real-Time Data Viewer\u003c\/li\u003e\n\u003cli\u003e4 Stage progressive nitrous control\u003c\/li\u003e\n\u003cli\u003eTraction Control - Power reduction via timing, nitrous percentage or boost (Requires Davis Technologies Holley Module)\u003c\/li\u003e\n\u003cli\u003eUses Holley Water\/Meth solenoids specially designed and calibrated for use with this EFI system to allow the user to enter Water\/Meth flow as a percentage of fuel injector flow for Water\/Meth tuning precision unmatched in the industry\u003c\/li\u003e\n\u003cli\u003eSelf-tuning fuel table strategy greatly simplifies tuning process\u003c\/li\u003e\n\u003cli\u003eIndividual cylinder fuel and spark control allows you to unlock your engine’s potential\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cyriously Slick Designs","offers":[{"title":"Default Title","offer_id":47290115227842,"sku":"550-605","price":2347.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/9231\/4818\/files\/Holley_HP_EFI_ECU_Unterminated_Harness_Kit_Bosch_550-605.avif?v=1779662843"},{"product_id":"hp-efi-ecu-harness-kits-550-605n","title":"HP EFI ECU \u0026 Unterminated Harness Kits NTK 550-605N","description":"\u003cdiv class=\"full_description\"\u003eLooking for a alternative for your stock or built late model factory FORD 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 ignition of your engine along with additional controls for nitrous, boost or water meth.\u003c\/div\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul class=\"productpage_list\"\u003e\n\u003cli\u003eOptional 5.7” full-color touchscreen LCD allows easy on-the-fly tuning,data-logging or can be used as an easy to see graphical gauge panel\u003c\/li\u003e\n\u003cli\u003eIndividual cylinder fuel and spark control allows you to unlock your engine’s potential\u003c\/li\u003e\n\u003cli\u003eUses Holley Water\/Meth solenoids specially designed and calibrated for use with this EFI system to allow the user to enter Water\/Meth flow as a percentage of fuel injector flow\u003c\/li\u003e\n\u003cli\u003eECU is fully potted and can be mounted in the engine compartment or interior\u003c\/li\u003e\n\u003cli\u003eSealed automotive and marine grade connectors\u003c\/li\u003e\n\u003cli\u003eIncludes NTK Wideband Oxygen Sensor\u003c\/li\u003e\n\u003cli\u003eUnique lb\/hr based fueling strategy greatly simplifies and commonizes tuning\u003c\/li\u003e\n\u003cli\u003eTwo channel knock control sensor Inputs for both one or two wire knock sensors\u003c\/li\u003e\n\u003cli\u003eFull timing retard\/control configurability per stage based on RPM or time\u003c\/li\u003e\n\u003cli\u003eInternal data-logging standard with a huge 2GB of memory\u003c\/li\u003e\n\u003cli\u003eSpeed density, Alpha-N, or combination fueling strategies\u003c\/li\u003e\n\u003cli\u003eDedicated fuel and oil pressure inputs\u003c\/li\u003e\n\u003cli\u003eProgressive control based on time, RPM, or boost, requires part # 554-111\u003c\/li\u003e\n\u003cli\u003eCan be configured “Wet” or “Dry” with closed loop feedback\u003c\/li\u003e\n\u003cli\u003e4 Programmable high or low Pulse Width Modulated (PWM) outputs and 4 fully configurable inputs can be configured for use\u003c\/li\u003e\n\u003cli\u003eEight sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 16 low or high impedance injectors as a standard feature. Multiple staged injector strategies\u003c\/li\u003e\n\u003cli\u003eEight channel Distributorless Ignition (DIS)outputs capable of directly driving “Smart” ignition coils or Holley DIS coils. Will drive 2 wire coils with the addition of PN 554-112 high current coil driver module\u003c\/li\u003e\n\u003cli\u003eSelf-tuning fuel table strategy greatly simplifies tuning process\u003c\/li\u003e\n\u003cli\u003eFully featured nitrous control eliminates the need for a separate nitrous controller device\u003c\/li\u003e\n\u003cli\u003e1-5 Bar MAP sensor capability\u003c\/li\u003e\n\u003cli\u003eTurbo boost control\u003c\/li\u003e\n\u003cli\u003eAdvanced idle, closed loop, and enrichment strategies allow for very stable operation\u003c\/li\u003e\n\u003cli\u003eIgnition Plug and Play with GM 24x and 58x LSx engines, GM HEI, Ford TFI, magnetic and hall effect trigger, and other ignition systems. New Plug and Play applications in process.\u003c\/li\u003e\n\u003cli\u003eAllows for use of common OEM sensors as well as customer sensor calibration input\u003c\/li\u003e\n\u003cli\u003e4 Stage progressive nitrous control\u003c\/li\u003e\n\u003cli\u003e4 Stage nitrous oxide control\u003c\/li\u003e\n\u003cli\u003eIntegrated Water\/Methanol injection control\u003c\/li\u003e\n\u003cli\u003eWorks with 4, 6, 8 cylinder engines\u003c\/li\u003e\n\u003cli\u003eCustom settings can be configured to allow many other applications\u003c\/li\u003e\n\u003cli\u003eIntegrated single channel wide band oxygen sensor control. Works with NTK sensors\u003c\/li\u003e\n\u003cli\u003eControls both stepper and PWM Idle Air Control (IAC) motors\u003c\/li\u003e\n\u003cli\u003eLean or rich safety cutoff\u003c\/li\u003e\n\u003cli\u003ePlug and Play control of factory GM 24x and 58x LSx engines\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cyriously Slick Designs","offers":[{"title":"Default Title","offer_id":47290116899010,"sku":"550-605N","price":2869.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/9231\/4818\/files\/Holley_HP_EFI_ECU_Unterminated_Harness_Kit_NTK_550-605N.avif?v=1779662783"},{"product_id":"with-coil-on-plug-main-and-sub-harness-with-ev1-injector-harness-dominator-efi-kit-universal-cop-main-harness","title":"Dominator EFI Kit with Coil on Plug Main and Sub Harness with EV1 Injector Harness","description":"\u003cdiv class=\"full_description\"\u003eDominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine 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 injected 8 cylinder running water-methanol injection? No problem with Dominator® EFI. How about control a 4L80E transmission as well as the fuel and spark on your street rod? No problem. There are also enough inputs and outputs to allow the Dominator® VMSs to serve as their own data acquisition and control module. The Dominator® VMS will eliminate the need for additional controllers as they are all contained in this one unit. The only thing limiting the Dominator® Vehicle Management System is your imagination!\u003c\/div\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul class=\"productpage_list\"\u003e\n\u003cli\u003eData logger - Smoothing, multiple graph view, pre-defined notes fields and more..\u003c\/li\u003e\n\u003cli\u003e“Boost Builder” functions offer the ability to assist building boost on the starting line by altering ignition timing, fueling, as well as nitrous oxide activation. Can also be used as an anti-lag function\u003c\/li\u003e\n\u003cli\u003eAllows for use of common OEM sensors as well as custom sensor calibration input\u003c\/li\u003e\n\u003cli\u003eCan be configured to control boost based on time, gear, speed, and manual inputs\u003c\/li\u003e\n\u003cli\u003eCan be configured “Wet” or “Dry” with closed loop feedback\u003c\/li\u003e\n\u003cli\u003eIntegrated dual channel wide band oxygen sensor controls – For monitoring both engine banks (NTK or Bosch sensors)\u003c\/li\u003e\n\u003cli\u003eTwo channel knock control sensor inputs for both one or two wire knock sensors\u003c\/li\u003e\n\u003cli\u003eGear based boost control configurable by several different methods\u003c\/li\u003e\n\u003cli\u003e“Quick Start” strategies – For faster engine starting\u003c\/li\u003e\n\u003cli\u003eStrip Chart – For real-time data viewing\u003c\/li\u003e\n\u003cli\u003eSelf-tuning fuel table strategy greatly simplifies tuning process – The more you drive it, the more it learns\u003c\/li\u003e\n\u003cli\u003eIntegrated electronic transmission control - Operates GM 4L60E and 4L80E transmissions, Ford AODE and 4R70W with more to come in the future\u003c\/li\u003e\n\u003cli\u003eProgressive control based on time, RPM, or boost, requires part # 554-111\u003c\/li\u003e\n\u003cli\u003eTURBOCHARGER BOOST CONTROL\u003c\/li\u003e\n\u003cli\u003eData Logger –Analyze and export your data with sophisticated, but user friendly tools – Internal logger has 4 GB of memory\u003c\/li\u003e\n\u003cli\u003eFull timing retard\/control configurability per stage based on RPM or time\u003c\/li\u003e\n\u003cli\u003eFuel Map and Learn Function Smoothing – Helps to smooth rough areas of the maps\u003c\/li\u003e\n\u003cli\u003eLean or rich safety cutoff\u003c\/li\u003e\n\u003cli\u003eAllows for two nozzles to be controlled\u003c\/li\u003e\n\u003cli\u003eINTEGRATED WATER\/METHANOL INJECTION CONTROL\u003c\/li\u003e\n\u003cli\u003eComplete control of pump activation, and low system safety features\u003c\/li\u003e\n\u003cli\u003eSealed automotive and marine grade connectors\u003c\/li\u003e\n\u003cli\u003eIntegrated drive by wire throttle body control - Can control two drive by wire throttle bodies. Compatible with a number of DBW throttle bodies including GM, Chrysler, Ford, and Nissan\u003c\/li\u003e\n\u003cli\u003eHARDWARE\u003c\/li\u003e\n\u003cli\u003eNozzles available from 400 to 1000 cc\/min\u003c\/li\u003e\n\u003cli\u003e12.3\" Pro Dash (PN 553-111) and 7\" Race Dash (PN 553-106) features full gauge layout customization, and nearly limitless tuning options.\u003c\/li\u003e\n\u003cli\u003eDATA VISUALIZATION TOOLS\u003c\/li\u003e\n\u003cli\u003eIndividual cylinder fuel and spark control allows you to unlock your engine’s potential\u003c\/li\u003e\n\u003cli\u003eRacepak Integration Module Available.\u003c\/li\u003e\n\u003cli\u003eECU is fully potted and can be mounted in the engine compartment or interior – See images for dimensions\u003c\/li\u003e\n\u003cli\u003eFully Configurable lap top Gauge Panel – Life-like gauge cluster on your laptop screen\u003c\/li\u003e\n\u003cli\u003eUses Holley water\/meth solenoids specially designed and calibrated for use with this EFI system to allow the user to enter water\/meth flow as a percentage of fuel injector flow for water\/meth tuning precision unmatched in the industry\u003c\/li\u003e\n\u003cli\u003eDominator EFI base kits come in several product variations to fit most popular domestic V8 engine applications such as; LS, SBC\/BBC, SBF, BBF, and Chrysler engines\u003c\/li\u003e\n\u003cli\u003eExtensive amount of inputs and outputs allow for limitless combination of options. Allows for unit to be used as a complete data acquisition system as well\u003c\/li\u003e\n\u003cli\u003eKits include the following: Dominator ECU, USB cable, ECU Power Harness, Engine Main Harness, EV1 Injector Harness, Bosch Wideband, ECU mounting hardware\u003c\/li\u003e\n\u003cli\u003e8 STAGE NITROUS OXIDE CONTROL\u003c\/li\u003e\n\u003cli\u003eFully featured boost control capability eliminates the need for a separate boost control device\u003c\/li\u003e\n\u003cli\u003eStore and select between four calibrations with Multi Map Selector (Part Number 558-407)\u003c\/li\u003e\n\u003cli\u003e1-7 Bar MAP sensor capability – For naturally aspirated or boosted applications\u003c\/li\u003e\n\u003cli\u003eFully featured nitrous control eliminates the need for a separate nitrous controller device\u003c\/li\u003e\n\u003cli\u003eOptional Digital Displays - 7\" Digital Dash (PN 553-106) \/ 3.5\" Touch Screen LCD (PN 553-108)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"widget_info\"\u003e\n\u003cdiv class=\"tech_icons fas fa-anchor fa-2x\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"widget_text\"\u003e\n\u003cspan class=\"tech_resource_widget_link\"\u003eUnited States Coast Guard Approved\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eCertified to ISO 8846, SAE J1171 Requirements\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cyriously Slick Designs","offers":[{"title":"Default Title","offer_id":47290125385922,"sku":"550-654","price":3013.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/9231\/4818\/files\/Holley_Dominator_EFI_Kit_Coil_on_Plug_Main_Sub_Harness_EV1_Injector_Harness.avif?v=1779662624"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/9231\/4818\/collections\/550-654.jpg?v=1779647751","url":"https:\/\/cyriouslyslick.com\/collections\/e-f-i-systems.oembed","provider":"Cyriously Slick Designs","version":"1.0","type":"link"}