Holley EFI 550-905T Terminator X 58x/4x EV6 LS MPFI Kit - Without 3.5" Handheld
Holley EFI 550-905T Terminator X 58x/4x EV6 LS MPFI Kit - Without 3.5" Handheld
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Holley EFI 550-905T Terminator X 58x/4x EV6 LS MPFI Kit - Without 3.5" Handheld

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Key item features

  • Engine Compatibility: Designed for GM LS engines with 58x crank, 4x cam, and EV6 injectors, including 4.8/5.3/6.0 truck engines and LS2/LS3.
  • Tuning Capabilities: Features real-time fuel map learning, an integrated 1-bar MAP sensor, and includes a USB/CAN tuning cable for laptop configuration with free EFI tuning software.
  • Injector Control: High impedance injector drivers safely power most stock LS and Holley EFI injectors, with an injector support chart provided in instructions.
  • Advanced I/O: Offers 4 programmable inputs (12v, Ground, 5v, Frequency) and 4 programmable outputs (Ground, PWM-) for accessories like fans, boost control, and nitrous.
  • Diagnostic Features: On-board diagnostic LEDs for ECU power, engine run, wideband status, TPS calibration, crank signal, and cam signal allow for quick issue identification.
  • Control Options: Includes boost control (vs. time, gear, RPM, speed, safeties) and single-channel nitrous control (wet/dry, progressive/non-progressive, safeties, closed-loop AFR).
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Columbus, 43215
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