Made in USA
550-603 HP EFI ECU & Harness Kit GM LS2/LS3/LS7
InfoVehicle Info Needed
HOLLEYPART NUMBER: 510-550-603

550-603 HP EFI ECU & Harness Kit GM LS2/LS3/LS7

$2,42195$2849.95You Save$428.00
2 left in stock
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ECU & Harness
    HP EFI ECU & Harness Kit
  • GM LS2/LS3/LS7
  • 58 Tooth Crank Sensor
  • Uscar (EV6) Injector Connectors
  • Bosch Oxygen Sensor
  • Uses Factory GM Coil Harnesses

    Emissions Note:

    This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

Part TypeEngine Control Module
BrandHOLLEY
Package Height7.9
Package Width11.5
Package Length12.6
Weight10.47 PG
Part CategoryPerformance Parts
QuantitySold individually
Part FitmentSemi Universal
Vendor Part Number550-603
Package Qty1
Package TypeEA
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