SKU: 17902488719

Holley HP EFI ECU Only (HO554-113)

Sale price$1765.35 Regular price$1961.50
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Description

Holley HP EFI ECU Only (HO554-113)HO554 113 EFI ECU ONLY HP STYLE With USB Cable & Software Part Number: HO554 113 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

HO554-113 - EFI ECU ONLY HP STYLE

With USB Cable & Software

Part Number: HO554-113

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 ignition of your engine along with additional controls for nitrous, boost or water meth.
NEW V2 SOFTWARE FEATURES:
"Quick Start" ignition and fueling strategy for LS x Engines
Data Logger. Scalable axes, Smoothing, Multiple graph view ability, Pre-defined notes fields and many more
Strip Chart Real-Time Data Viewer
Integrated 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
Traction Control - Power reduction via timing, nitrous percentage or boost (Requires Davis Technologies Holley Module)
“Quick Start” fueling for all engines
Option for VE based fueling strategy
Fuel Map and Learn Function Smoothing
Configurable User Password Protection
Fully Configurable lap top Gauge Panel
FEATURES:
Optional 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
Eight 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
Eight 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
Plug and Play control of factory GM 24x and 58x LSx engines
Integrated single channel wide band oxygen sensor control. Works with NTK or Bosch sensors
Internal data-logging standard with a huge 2GB of memory
4 Stage progressive nitrous control
Turbo boost control
Integrated water/methanol injection control
Self-tuning fuel table strategy greatly simplifies tuning process

Individual cylinder fuel and spark control allows you to unlock your engine’s potential
Works with 4, 6, 8 cylinder engines
Unique lb/hr based fueling strategy greatly simplifies and commonizes tuning
Advanced idle, closed loop, and enrichment strategies allow for very stable operation
ECU is fully potted and can be mounted in the engine compartment or interior
Sealed automotive and marine grade connectors
Allows for use of common OEM sensors as well as customer sensor calibration input
Ignition 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. Custom settings can be configured to allow many other applications
1-5 Bar MAP sensor capability
Two channel knock control sensor Inputs for both one or two wire knock sensors
Dedicated fuel and oil pressure inputs
Controls both stepper and PWM Idle Air Control (IAC) motors
Speed density, Alpha-N, or combination fueling strategies
4 Programmable high or low Pulse Width Modulated (PWM) outputs and 4 fully configurable inputs can be configured for use
4 Stage nitrous oxide control
Fully featured nitrous control eliminates the need for a separate nitrous controller device
Can be configured “Wet” or “Dry” with closed loop feedback
Progressive control based on time, RPM, or boost, requires part # 554-111
Lean or rich safety cutoff
Full timing retard/control configurability per stage based on RPM or time
Integrated Water/Met

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
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SKU: 17902488719

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4.5 ★★★★★
Based on 14 reviews
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Verified Purchase
Robert Doty
West Palm Beach, US
★★★★★ 5
Convenient and easy seasoning
Color: Rechargeable Set with Base
I bought these to replace a set of manual twist grinders which didn't last long. Not sure how long these will last but I will say that I am very impressed after my first use. The salt grinder grinds very evenly and it's really easy to see how much is being dispensed. Same with the pepper grinder. I also like that they come with a tray which catches the inevitible particles that would otherwise would scatter on the countertop. Rechargeable, comes with two cords and a cleaning brush and grinders seem to be of high quality. So easy to use - just hold over your steak, burger, fish and press the button with your thumb. Highly recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 17, 2025
M
Verified Purchase
Miss M suggestions
Grantham, US
★★★★★ 5
Good buy
Color: Rechargeable Set with Base
I bought these for my son and his wife for Christmas this year. He loves them and uses them regularly. Super good looking, easy charging. Nice flow of ground salt and pepper. I have seen him using them while cooking so I asked what he thought.
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Reviewed in the United States on April 26, 2026
M
Verified Purchase
Marty
Boise, US
★★★★★ 5
Everyone Loves My Electric Salt & Pepper Grinder Set!
Color: Rechargeable Set with Base
Very nice looking grinder set. Rechargeable is the only way to go. They function with ease. I Love that I can easily adjust the size of the grind for both the salt & pepper. It is also nice to have a holder for them to keep counters clean. My family and friends have ask me to send them them the Amazon link so that they can purchase a set for themselves.
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Reviewed in the United States on March 5, 2026
C
Verified Purchase
Christopher Shipp
Pawtucket, US
★★★★★ 5
Great Product!
Color: Rechargeable Set with Base
Works as expected. Truly happy with the price and durability so far.
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Reviewed in the United States on March 17, 2026
S
Verified Purchase
Sheila Harricharan
Alexandria, US
★★★★★ 4
Good pepper grinder
Color: Rechargeable Set with Base
Good grinding capabilities. When I use for salt ,it drips every where . Only suitable for pepper
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 11, 2025

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