Holley EFI Terminator X Max GM Gen V LT4 Direct Injection Kit; Early Application (Universal; Some Adaptation May Be Required)

Description

Complete Engine Control. The Holley EFI Terminator X Max GM Gen V LT4 Direct Injection Kit; Early Application provides full management of your GM Gen V LT4 engine, allowing precise tuning and enhanced performance. Designed for ease of use, it replaces the factory ECU with a self-learning system that supports direct injection, variable valve timing, and drive-by-wire throttle bodies to unlock your engine’s potential.

Construction and Appearance. This EFI system features a robust, textured black finish designed for durability in demanding environments. The kit includes a high-quality handheld touchscreen with built-in Bosch LSU 4.9 wideband control and an integrated 1bar MAP sensor, all engineered to meet the rigorous standards of performance and reliability.

Installation. Installation is straightforward with a plug-and-play harness that connects directly to the factory LT direct injection injector sub harness. No drilling is required, making it ideal for engine swaps and performance upgrades.

Application. Fits GM Gen V LT4 early applications featuring a 4-pin fuel pressure sensor located behind the intake manifold. Not compatible with late applications that use a 3-pin sensor configuration.

Holley EFI 550-1623

CA Residents: WARNING: Cancer and Reproductive Harm

• Plug And Play Gm Gen V Lt Engine Control Including Gdi And Vvt Support
• Ideal For Swapping Late Model Gm Gen V Lt Engines Into Vintage Vehicles
• 3.5� Handheld Gets Your Engine Running In No Time With A Step-By-Step Calibration Wizard
• Gm Ls And Lt Drive-By Wire Throttle Body Control Terminator X Max Only
• Gm 4L60 And 4L80 Transmission Control Terminator X Max Only
• Included Engine Harness Plugs Directly Into The Factory Lt Di Injector Sub Harness
• Oem Injectors Supported, With Part Numbers Provided In The Handheld Wizard, Or Software
• Genuine Bosch Lsu 4.9 Wideband Control Will Not Work With Lsu 4.2 Oxygen Sensors
• On-Board Diagnostic Leds For Ecu Power � Engine Run � Wideband Status � Tps Calibration � Crank Signal � Cam Signal � Vvt Status � Pump Control � And Di Injectors
• Built In 1Bar Map Sensor, Vacuum Hose Adapters Included 1/8th � � And 3/16ths
• 4 Inputs � 12V, Ground, 5V, And Frequency For Additional Pressure Sensors Or Activation Triggers
• 4 Outputs � Ground, Pwm For Accessories Such As Fans, Boost Control, Nitrous Control, Iac Kit, And More
• Boost Control Options Including Boost Vs Time, Boost Vs Gear, Boost Vs RPM, Boost Vs Speed, Boost Safeties
• Nitrous Control With Single Channel Of Wet Or Dry, Progressive Or Non-Progressive, Rich/Lean Safeties, And Target Closed Loop Afr
• Advanced Tables Including Multiple 1D And 2D Tables With Gear Specific Tables
• Integrated Data Logging To The 3.5� Handheld Sd Card
• Free Efi Tuning Software For Complete Control Of The Terminator X Power Plant
• Fits Gm Gen V Lt4 Early Application Engines Only With 4-Pin Fuel Pressure Sensor