Holley EFI 550-904T Terminator X 24x/1x Multec 2 LS MPFI Kit - Without 3.5" Handheld
Holley EFI 550-904T Terminator X 24x/1x Multec 2 LS MPFI Kit - Without 3.5" Handheld
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Holley EFI 550-904T Terminator X 24x/1x Multec 2 LS MPFI Kit - Without 3.5" Handheld

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Key item features

  • Engine Compatibility: Designed for GM LS engines with 24x crank reluctor and Multec 2 injectors, specifically supporting 4.8/5.3/6.0 truck engines.
  • Tuning Capabilities: Features real-time fuel map learning, an integrated 1bar MAP sensor, and includes a CAN/USB tuning cable for laptop-based configuration and real-time engine tuning.
  • Injector Support: Equipped with high impedance injector drivers capable of safely powering most stock LS and Holley EFI injectors, but not low impedance injectors.
  • Advanced Controls: Offers 4 programmable outputs for accessories like fans and boost control, and 4 inputs for additional sensors or activation triggers.
  • Integrated Safeties: Includes comprehensive boost control (vs. time, gear, RPM, speed) with safeties, and single-channel nitrous control with rich/lean safeties and closed-loop AFR targeting.
  • Diagnostic Features: On-board diagnostic LEDs provide immediate visual status for ECU power, engine run, wideband, TPS calibration, and crank/cam signals.
  • Expandable System: Plug-and-play compatible with various Holley EFI accessories, including analog gauges, shift lights, and future 12.3" digital dash support.
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Current price is $1,399.95
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