Holley EFI 550-910T Terminator X 58x/4x EV1 LS MPFI Kit - Without 3.5" Handheld
Holley EFI 550-910T Terminator X 58x/4x EV1 LS MPFI Kit - Without 3.5" Handheld
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Holley EFI 550-910T Terminator X 58x/4x EV1 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 EV1 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 access.
  • Injector Support: High impedance injector drivers safely power most stock LS and Holley EFI injectors, with an injector support chart provided in instructions.
  • Sensor Integration: Utilizes a Bosch LSU 4.9 wideband for accurate AFR readings and includes MAP sensor vacuum hose adapters.
  • Programmable I/O: Offers 4 inputs (12v, Ground, 5v, Frequency) and 4 outputs (Ground, PWM-) for accessories like fans, boost control, and nitrous.
  • Advanced Controls: Provides boost control (vs. time, gear, RPM, speed) and single-channel nitrous control with progressive/non-progressive options and safeties.
  • Diagnostic Features: On-board diagnostic LEDs indicate ECU power, engine run, wideband status, TPS calibration, and crank/cam signals.
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Current price is $1,399.95
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Columbus, 43215
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Holley EFI 550-910T Terminator X 58x/4x EV1 LS MPFI Kit - Without 3.5" Handheld
Holley EFI 550-910T Terminator X 58x/4x EV1 LS MPFI Kit - Without 3.5" Handheld
current price $1,399.95
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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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Comparison Chart:
Vehicle makeGMHolley EFI 550-910T Terminator X 58x/4x EV1 LS MPFI Kit - Without 3.5" HandheldGMHolley EFI 550-903 Fuel Injection SystemGMHolley EFI 550-904T Terminator X 24x/1x Multec 2 LS MPFI Kit - Without 3.5" HandheldGMHolley EFI 550-909T Terminator X 24x/1x EV1 LS MPFI Kit - Without 3.5" HandheldGMTerminator X LS1 MPFI SystemFordHolley EFI 558-508 Fuel Injection HarnessGMTerminator X MPFI System
Vehicle modelLSHolley EFI 550-910T Terminator X 58x/4x EV1 LS MPFI Kit - Without 3.5" Handheld550-903Holley EFI 550-903 Fuel Injection SystemLSHolley EFI 550-904T Terminator X 24x/1x Multec 2 LS MPFI Kit - Without 3.5" HandheldLS1Holley EFI 550-909T Terminator X 24x/1x EV1 LS MPFI Kit - Without 3.5" Handheld550-905Terminator X LS1 MPFI SystemV8Holley EFI 558-508 Fuel Injection HarnessLS1Terminator X MPFI System
Automotive parts divisionPerformanceHolley EFI 550-910T Terminator X 58x/4x EV1 LS MPFI Kit - Without 3.5" HandheldPerformanceHolley EFI 550-903 Fuel Injection SystemPerformanceHolley EFI 550-904T Terminator X 24x/1x Multec 2 LS MPFI Kit - Without 3.5" HandheldPerformanceHolley EFI 550-909T Terminator X 24x/1x EV1 LS MPFI Kit - Without 3.5" HandheldPerformanceTerminator X LS1 MPFI SystemPerformanceHolley EFI 558-508 Fuel Injection HarnessPerformanceTerminator X MPFI System
Vehicle fitment typeSpecificHolley EFI 550-910T Terminator X 58x/4x EV1 LS MPFI Kit - Without 3.5" HandheldSpecificHolley EFI 550-903 Fuel Injection SystemSpecificHolley EFI 550-904T Terminator X 24x/1x Multec 2 LS MPFI Kit - Without 3.5" HandheldSpecificHolley EFI 550-909T Terminator X 24x/1x EV1 LS MPFI Kit - Without 3.5" HandheldSpecificTerminator X LS1 MPFI SystemSpecificHolley EFI 558-508 Fuel Injection HarnessSpecificTerminator X MPFI System
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