Holley EFI Terminator X Max – Gen IV 4.8/5.3/6.0 GM Truck Engines and LS2/LS3

Holley EFI Terminator X Max – Gen IV 4.8/5.3/6.0 GM Truck Engines and LS2/LS3

The Holley EFI Terminator X Max – Gen IV 4.8/5.3/6.0 GM Truck Engines and LS2/LS3 is a powerful, budget-friendly engine management system designed specifically for GM LS truck engines and LS2/LS3 platforms. It offers complete control with self-learning fuel strategies, real-time tuning, and advanced features like boost and nitrous control, making it ideal for enthusiasts looking to maximize performance and reliability.

Key Features

• Designed for GM LS 4.8/5.3/6.0 truck engines and LS2/LS3 with 58x crank and 4x cam sensors
• Supports 4L60E/4L80E transmissions and drive-by-wire throttle bodies
• Real-time fuel map learning with high impedance injector drivers
• Onboard 1 bar MAP sensor ideal for naturally aspirated or nitrous setups
• 4 programmable inputs and outputs for accessories like fans, boost control, and nitrous
• Advanced boost and nitrous control with safeties and progressive options
• Includes Bosch LSU 4.9 wideband oxygen sensor for precise AFR tuning
• Compact ECU with CAN/USB tuning cable for laptop-based configuration
• Supports E85, coil-per-cylinder ignition, individual cylinder fuel corrections, and datalogging

Fitment

• GM Gen IV LS 4.8L, 5.3L, 6.0L truck engines
• LS2 and LS3 engines with 58x crank and 4x cam sensors
• 4L60E and 4L80E transmissions
• Drive-by-wire throttle body equipped vehicles

Note: This kit requires use of the free Terminator X software for initial setup and tuning via laptop. Verify compatibility with your engine and transmission before ordering. Injector compatibility is limited to high impedance types; low impedance injectors are not supported.