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HOL-550-601 PART NUMBER
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HOL-550-602 PART NUMBER
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 -
HOL-550-603 PART NUMBER
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 -
HOL-550-604 PART NUMBER
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HOL-550-605 PART NUMBER
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HOL-558-504 PART NUMBER
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HOL-550-606N PART NUMBER
HOLLEY 550-606N HP EFI ECU & HARNESS KITS$2,999.95
HP EFI ECU & HARNESS KITS
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Universal FORD V8 Multi-Point Fuel Injection, Includes NTK Oxygen Sensor, and Ford V8 Injector Harness. -
HOL-550-603N PART NUMBER
HOLLEY 550-603N HP EFI ECU & HARNESS KITS$3,099.95
HP EFI ECU & HARNESS KITS
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GM LS2/3/7 (58x crank sensor) with USCAR (EV6 Style) connectors on injector harness, Includes NTK Oxygen Sensor -
HOL-550-602N PART NUMBER
HOLLEY 550-602N HP EFI ECU & HARNESS KITS$3,099.95
HP EFI ECU & HARNESS KITS
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GM LS1/LS6 (24x crank sensor) with Jetronic/Minitimer (Bosch type) connectors on injector harness, Includes NTK Oxygen Sensor -
HOL-550-605N PART NUMBER
