Instant Rebates
800.345.4545
Call Our Support Line
24 Hours / 7 Days a Week!  
FREE SHIPPING!
Same Day Shipping Before 11 PM ET
0
My Cart
0
$0.00
Shop By Vehicle
Shop By
Category
Close Menu
Shop By Vehicle
Top Categories
All Categories

All Categories


Free Catalog
E-Mail Signup
My Account
Track Order
Gift Certificates
Rebates
Help

Holley 550-602

HP EFI ECU & Harness Kit GM LS1/LS6

Holley 550-602

510-550-602

made in usa
jegs shipping
FREE Shipping
Ships
Easy Returns
Easy Returns
Lowest Price Guarantee
Lowest Price Guarantee
$1,766.95
$1,590.26
ON SALE - $176.69 OFF
Holley 550-602 HP EFI ECU & Harness Kit GM LS1/LS6 $1,590.26
HP EFI ECU & Harness Kit
  • GM LS1/LS6
  • Jetronic/Minitimer Injector Connectors
  • Bosch Oxygen Sensor
  • Uses Factory GM Coil Harnesses

  • Holley 550-602 Details

    ECU & Harness

    Specifications:

    Quantity
    Sold individually
    Manufacturer's Part Number:
    550-602

    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.

    Features:

    • 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

    Items You Need

    Before you leave us... Receive a free catalog or join our email list

    Sign up to receive our catalog or subscribe to our email list now to see our exclusive email only specials, new products, and offers!

    Request CatalogJoin Email List