Holley 550-903 Terminator X LS1/LS6 MPFI Kit w/Pigtail/CAN Cable

Kit Includes:

• (1) Holley 550-903 Terminator X LS1/LS6 MPFI Kit
• (1) Holley 197-400 Alternator Plug for AD style alternators, Pigtail
• (1) Holley 558-443 CAN to USB Dongle-Communication Cable

Holley 550-903 Terminator X LS1/LS6 MPFI Kit

• For GM LS1/LS6 engines with 24x crank reluctor - with EV1 Injectors.
• Real-Time fuel map learn, takes the guess work out of tuning your base fuel table.
• High Impedance Injector Drivers will safely power most Stock LS injectors, and Holley EFI Injectors. Injector support chart provided in the instructions (Will not control Low Impedance Injectors)
• On-Board 1bar MAP sensor, is perfect for N/A or Nitrous engine combos. 
• MAP Sensor vacuum hose adapters (1/8th – ¼ and 3/16ths)
• 4 Inputs – 12v, Ground, 5v, and Frequency, for things such as additional pressure sensors, or activation triggers for nitrous activation, or a trans brake
• Boost Control – Boost vs Time, Boost vs Gear, Boost vs RPM, Boost vs Speed, Boost Safeties
• Nitrous Control – Single Channel of Wet or Dry, Progressive or Non-Progressive, Rich/Lean Safeties, and target Closed Loop AFR
• Advanced Tables – 4x 1D Tables, 1x 1D per Gear Table, 4x 2D Tables, 1x 2D per Gear Table, can be used for any custom tables you can dream up, such as Flex Fuel Sensor Offset Table, or a custom fuel or oil pressure safety!
• On-Board Diagnostic LEDS for: ECU Power – Engine Run – Wideband Status – TPS Calibration – Crank Signal –Cam Signal. Allow you to identify any Critical engine issues at a glance
• The included 3.5" Touchscreen Handheld contains a calibration wizard, that allows you to quickly build a base tune for any LS engine. Additionally the handheld provides internal data-logging and a fully customizable gauge display.
• Plug and play compatible with more Holley EFI accessories such as; analog style gauges, shift lights, various modules, and coming soon, 12.3" digital dash support!

 Holley 197-400 Alternator Plug for AD style alternators, Pigtail

• Fits AD style alternators
• Weather Pack style seal
• In-line resistor that allows but does not require a charge light
• 8 ft. length

Holley 558-443 CAN to USB Dongle-Communication Cable

• The CAN to USB communication cable provides the user with real tuning time access to the ECU
• This cable can be used with Holley EFI, Sniper EFI, and Terminator X Tuning Software, which can be downloaded for free from the support section of Holley's website. This cable is a 8’ communication cable for easy access to your ECU.

Installation Instructions

Handheld & Reference Manual

Wiring Diagram

Holley EFI Support Forums

Terminator X Software