LS4 EFI

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  HOLLEY EFI HP EFI ECU & HARNESS KITS GM LS2/3/7 (58x crank sensor) with USCAR (EV6 Style) connectors on injector harness, Includes Bosch Oxygen Sensor Part # 550-603

  $2,899.00 Original price was: $2,899.00.$2,608.95Current price is: $2,608.95.
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  HOLLEY EFI HP EFI ECU & HARNESS KITS GM LS2/3/7 (58x crank sensor) with USCAR (EV6 Style) connectors on injector harness, Includes NTK Oxygen Sensor Part # 550-603N

  $3,146.00 Original price was: $3,146.00.$2,830.95Current price is: $2,830.95.