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  1. HOL-554-113 PART NUMBER
    554-113
    HOLLEY 554-113 HP EFI ECU
    $2,099.95
    HP EFI ECU, USB Cable, and Software Learn More
  2. HOL-550-601 PART NUMBER
    550-601
    HOLLEY 550-601 HP EFI ECU & HARNESS KITS
    $2,749.95
    GM TPI and Holley Stealth Ram, Includes Bosch Oxygen Sensor Learn More
  3. HOL-550-602 PART NUMBER
    550-602
    HOLLEY 550-602 HP EFI ECU & HARNESS KITS
    $2,849.95
    GM LS1/LS6 (24x crank sensor) with Jetronic/Minitimer (Bosch type) connectors on injector harness (fits Holley 522-xxx injectors), Includes Bosch Oxygen Sensor Learn More
  4. HOL-550-603 PART NUMBER
    550-603
    HOLLEY 550-603 HP EFI ECU & HARNESS KITS
    $2,849.95
    GM LS2/3/7 (58x crank sensor) with USCAR (EV6 Style) connectors on injector harness, Includes Bosch Oxygen Sensor Learn More
  5. HOL-550-604 PART NUMBER
    550-604
    HOLLEY 550-604 HP EFI ECU & HARNESS KITS
    $2,749.95
    Universal V8 Multi-Point Fuel Injection, Includes Bosch Oxygen Sensor Learn More

Products (1-5 of 2178)

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