Holley EFI 550-926 Fuel Injection System
Holley EFI 550-926 Fuel Injection System
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Holley EFI 550-926 Fuel Injection System

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Key item features

  • Engine Compatibility: Designed for GM LS1/LS6 engines with 24x crank reluctor, EV1 injectors, and supports 4L60E/4L80E transmissions and drive-by-wire throttle control.
  • Tuning Capabilities: Features real-time fuel map learning, a calibration wizard for base tunes, and free EFI tuning software for advanced users.
  • Injector Support: Equipped with high impedance injector drivers compatible with most stock LS and Holley EFI injectors, but not low impedance types.
  • Sensor Integration: Includes an on-board 1bar MAP sensor for N/A or Nitrous setups, and utilizes a Bosch LSU 4.9 wideband for accurate AFR readings.
  • Input/Output Control: Provides 4 programmable inputs (12v, Ground, 5v, Frequency) and 4 outputs (Ground, PWM-) for accessories like fans, boost, and nitrous control.
  • Advanced Features: Offers comprehensive boost control (vs. Time, Gear, RPM, Speed) and single-channel nitrous control with progressive or non-progressive options and safeties.
  • Diagnostic & Display: Features on-board diagnostic LEDs for critical engine issues and a 3.5" touchscreen handheld for data-logging, gauge display, and calibration.
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Current price is $2,099.95
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Columbus, 43215
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Comparison Chart:
Vehicle makeGMHolley EFI 550-926 Fuel Injection SystemFordHolley EFI 550-1006 Terminator X Stealth 4150, GoldGMTerminator® LS MPFIGMHolley EFI 550-927 Fuel Injection SystemGMHolley EFI 550-920 Terminator X Max 58x/4x EV1 LS MPFI Kit with Transmission ControlGMHolley EFI 550-905T Terminator X 58x/4x EV6 LS MPFI Kit - Without 3.5" HandheldGMHolley EFI 550-1021 Terminator X Stealth 4150 24X - Black Finish
Vehicle modelLS1Holley EFI 550-926 Fuel Injection System-Holley EFI 550-1006 Terminator X Stealth 4150, GoldLS2Terminator® LS MPFILS 4.8Holley EFI 550-927 Fuel Injection SystemLSHolley EFI 550-920 Terminator X Max 58x/4x EV1 LS MPFI Kit with Transmission ControlLSHolley EFI 550-905T Terminator X 58x/4x EV6 LS MPFI Kit - Without 3.5" HandheldLSHolley EFI 550-1021 Terminator X Stealth 4150 24X - Black Finish
Fuel injection accessory & part typeFuel Injection SystemHolley EFI 550-926 Fuel Injection SystemFuel InjectorsHolley EFI 550-1006 Terminator X Stealth 4150, GoldEFI Terminator MpfiTerminator® LS MPFIFuel Injection SystemHolley EFI 550-927 Fuel Injection System-Holley EFI 550-920 Terminator X Max 58x/4x EV1 LS MPFI Kit with Transmission ControlPFI KITHolley EFI 550-905T Terminator X 58x/4x EV6 LS MPFI Kit - Without 3.5" Handheld-Holley EFI 550-1021 Terminator X Stealth 4150 24X - Black Finish
Automotive parts divisionPerformanceHolley EFI 550-926 Fuel Injection SystemPerformanceHolley EFI 550-1006 Terminator X Stealth 4150, GoldPerformanceTerminator® LS MPFIPerformanceHolley EFI 550-927 Fuel Injection SystemPerformanceHolley EFI 550-920 Terminator X Max 58x/4x EV1 LS MPFI Kit with Transmission ControlPerformanceHolley EFI 550-905T Terminator X 58x/4x EV6 LS MPFI Kit - Without 3.5" Handheld-Holley EFI 550-1021 Terminator X Stealth 4150 24X - Black Finish
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