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Holley 553-108

3.5" LCD Full Color Touch Screen Control Upgrade

Holley 553-108


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Holley 553-108 3.5" LCD Full Color Touch Screen Control Upgrade $224.96
3.5'' LCD Full Color Touch Screen Control Upgrade
  • Allows Laptop-free Tuning Changes
  • Dynamic Range of Tuning and Data Monitoring
  • Use with all Holley Terminator, HP, and Dominator EFI Systems

  • Holley 553-108 Details

    Touch Screen Control Upgrade

    The touch screen LCD provides a dynamic range of tuning and data monitoring options in a compact 3-1/2'' LCD display.

  • Full Color, Backlit 3.5'' Touch Screen LCD
  • Laptop-Free Tuning changes to help optimize mileage, drivability and performance
  • Basic Tuning options allow simple adjustments of Basic Fuel, Fuel Learn, Basic Idle, Spark, Drive-by-Wire, and Transmission
  • System Tuning options allow modifications to Outputs, Engine Setup, Ignition Setup, and additional Transmission setup
  • Advanced Tuning options allow fine tuning of Fuel, Closed Loop, Learn, and Idle (including IAC parameters and Idle Spark)
  • Monitor a vast number of Parameters in Pre-Configured Multi-Gauge and Monitor Screens, or configure your own
  • Set up ECU Data-logging, Download Data logs to SD Card, Upload and Download Global Folders via SD Card, Update ECU Firmware and Adjust Rev Limiters 1 and 2
  • Includes 3.5'' Touch Screen, Mounting Sleeve, Power and Extension Harness, SD Card, and User Manual CD
  • Screen Dimensions: 3.35'' Wide x 2.85'' High x 0.70'' Thick
  • Sleeve Dimensions: 3.625'' Wide x 2.925'' High x 1.00'' Thick

  • Specifications:

    Manufacturer's Part Number:

    Complete 1997-Up GM LS Engine Plug and Play Engine Controller Kit

    Looking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more! Is your cam too wild for a MAF? Power adders? You name it, and Holley EFI can handle it. Kits are not designed to control VVT (Variable Valve Timing) or Drive-by-Wire. VVT should be locked. Dominator ECU is required for drive-by-wire applications. Holley HP EFI systems are equipped with 4 programmable inputs and 4 programmable outputs that are ideal for most vehicles with a single power adder. This feature allows the user to configure the system to support a wide range of controls including boost control, progressive nitrous, water/meth injection, speed inputs, fuel pump control, AC inputs, timing retard inputs and various other uses. When selecting an ECU, users need to ensure their planned controls can be run with the 4 inputs and 4 outputs as certain combinations may use more inputs/outputs than are available. If more inputs/outputs are required, users should choose the Dominator VMS. ECU is certified to ISO 8846, SAE J1171 & United States Coast Guard Requirements for Ignition Protection & Fire Resistance.


    • Designed specifically for 1997-Present GM Gen III and Gen IV LS Style Engines (LS1/LS2/LS3/LS6/LS7)
    • Kits for 24x or 58x Crank Sensor
    • Plug and play with factory sensors; Crank, Cam, Cylinder Head Temp, etc
    • Plug and play with factory actuators; Coils, Injectors
    • Connectors for Holley Fuel Pressure and Oil Pressure sensors
    • Connectors for expanded Inputs and Outputs
    • Complete plug and play kits include HP ECU, Wideband O2 sensor (choice of Bosch or NTK), MAP sensor, Coil Drivers and all necessary Harnesses
    Click here for Holley HP Inline Fuel Pumps
    Click here for Holley Dominator Inline Fuel Pumps

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