Holley EFI 550-1631LSD Holley EFI Terminator X Max GM Gen V LT Late Direct Injection Kit
Holley EFI 550-1631LSD Holley EFI Terminator X Max GM Gen V LT Late Direct Injection Kit
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Holley EFI 550-1631LSD Holley EFI Terminator X Max GM Gen V LT Late Direct Injection Kit

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Key item features

  • Engine Control: Offers plug-and-play GM Gen V LT engine control, including Gasoline Direct Injection (GDI) and Variable Valve Timing (VVT) support, ideal for swapping these engines into vintage vehicles.
  • Integrated Features: Includes a built-in 1bar MAP sensor with vacuum hose adapters, and supports external LT MAP sensors for boosted applications.
  • Advanced Connectivity: Features four programmable inputs (12v, Ground, 5v, Frequency) for additional sensors or activation triggers, and four outputs (Ground, PWM-) for accessories like fans or boost control.
  • Transmission & Throttle: Provides GM LS and LT Drive-by-Wire Throttle Body Control, along with GM 4L60 and 4L80 Transmission Control (Terminator X Max Only).
  • Tuning & Diagnostics: Comes with a 3.5-inch handheld for quick setup via a calibration wizard, integrated data logging, and on-board diagnostic LEDs for critical engine status at a glance.
  • Performance Enhancements: Supports advanced boost control strategies (vs. Time, Gear, RPM, Speed) and single-channel nitrous control (Wet/Dry, Progressive/Non-Progressive) with safety features.
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Columbus, 43215
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Holley EFI 550-1631LSD Holley EFI Terminator X Max GM Gen V LT Late Direct Injection Kit
Holley EFI 550-1631LSD Holley EFI Terminator X Max GM Gen V LT Late Direct Injection Kit
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Holley EFI 550-1631LSD Holley EFI Terminator X Max GM Gen V LT Late Direct Injection Kit
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Comparison Chart:
Vehicle makeGMHolley EFI 550-1631LSD Holley EFI Terminator X Max GM Gen V LT Late Direct Injection KitFordHolley EFI 550-1507 Terminator X Max Ford Coyote - 2011-2012 w/ Ti-VCTGMHolley EFI 550-1610 Holley EFI Terminator X Max GM Gen V LT Early Direct Injection KitGMHolley EFI 550-1620LSD Holley EFI Terminator X Max GM Gen V LT Early Direct Injection KitFordHolley EFI 550-1509 Terminator X Max Ford Coyote - 2013-2015 w/ Ti-VCTFordHolley EFI 550-1508 Terminator X Max Ford Coyote - 2011-2012 w/ Ti-VCTFordHolley EFI 550-1410 Terminator X Max Ford Coyote - 2013-2015 w/ Ti-VCTFordHolley EFI 550-1215 Terminator X Ford Coyote - 2015.5-2017 w/ Ti-VCTFordHolley EFI 550-1411 Terminator X Max Ford Coyote - 2013-2015 w/ Ti-VCTFordHolley EFI 550-1214 Terminator X Ford Coyote - 2015.5-2017 w/ Ti-VCT
Vehicle modelGen V LTHolley EFI 550-1631LSD Holley EFI Terminator X Max GM Gen V LT Late Direct Injection KitCoyoteHolley EFI 550-1507 Terminator X Max Ford Coyote - 2011-2012 w/ Ti-VCTGen V LTHolley EFI 550-1610 Holley EFI Terminator X Max GM Gen V LT Early Direct Injection KitGen V LTHolley EFI 550-1620LSD Holley EFI Terminator X Max GM Gen V LT Early Direct Injection KitCoyoteHolley EFI 550-1509 Terminator X Max Ford Coyote - 2013-2015 w/ Ti-VCTCoyoteHolley EFI 550-1508 Terminator X Max Ford Coyote - 2011-2012 w/ Ti-VCTCoyoteHolley EFI 550-1410 Terminator X Max Ford Coyote - 2013-2015 w/ Ti-VCTCoyoteHolley EFI 550-1215 Terminator X Ford Coyote - 2015.5-2017 w/ Ti-VCTCoyoteHolley EFI 550-1411 Terminator X Max Ford Coyote - 2013-2015 w/ Ti-VCTCoyoteHolley EFI 550-1214 Terminator X Ford Coyote - 2015.5-2017 w/ Ti-VCT
Automotive parts divisionPerformanceHolley EFI 550-1631LSD Holley EFI Terminator X Max GM Gen V LT Late Direct Injection KitPerformanceHolley EFI 550-1507 Terminator X Max Ford Coyote - 2011-2012 w/ Ti-VCTPerformanceHolley EFI 550-1610 Holley EFI Terminator X Max GM Gen V LT Early Direct Injection KitPerformanceHolley EFI 550-1620LSD Holley EFI Terminator X Max GM Gen V LT Early Direct Injection KitPerformanceHolley EFI 550-1509 Terminator X Max Ford Coyote - 2013-2015 w/ Ti-VCTPerformanceHolley EFI 550-1508 Terminator X Max Ford Coyote - 2011-2012 w/ Ti-VCTPerformanceHolley EFI 550-1410 Terminator X Max Ford Coyote - 2013-2015 w/ Ti-VCTPerformanceHolley EFI 550-1215 Terminator X Ford Coyote - 2015.5-2017 w/ Ti-VCTPerformanceHolley EFI 550-1411 Terminator X Max Ford Coyote - 2013-2015 w/ Ti-VCTPerformanceHolley EFI 550-1214 Terminator X Ford Coyote - 2015.5-2017 w/ Ti-VCT
Vehicle fitment typeSpecificHolley EFI 550-1631LSD Holley EFI Terminator X Max GM Gen V LT Late Direct Injection KitSpecificHolley EFI 550-1507 Terminator X Max Ford Coyote - 2011-2012 w/ Ti-VCTSpecificHolley EFI 550-1610 Holley EFI Terminator X Max GM Gen V LT Early Direct Injection KitSpecificHolley EFI 550-1620LSD Holley EFI Terminator X Max GM Gen V LT Early Direct Injection KitSpecificHolley EFI 550-1509 Terminator X Max Ford Coyote - 2013-2015 w/ Ti-VCTSpecificHolley EFI 550-1508 Terminator X Max Ford Coyote - 2011-2012 w/ Ti-VCTSpecificHolley EFI 550-1410 Terminator X Max Ford Coyote - 2013-2015 w/ Ti-VCTUniversalHolley EFI 550-1215 Terminator X Ford Coyote - 2015.5-2017 w/ Ti-VCTSpecificHolley EFI 550-1411 Terminator X Max Ford Coyote - 2013-2015 w/ Ti-VCTSpecificHolley EFI 550-1214 Terminator X Ford Coyote - 2015.5-2017 w/ Ti-VCT
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