The Holley EFI Terminator X Max kit brings plug-and-play standalone engine control to Ford's 4.6L/5.4L 4V modular engines, along with control of the 1998-and-newer 4R70W/4R75W transmission. It's built around the same Terminator X core used in 1996-2004 Mustangs, 1995-2006 F150s, and 2002-2005 Explorers, and works with stock coils and EV6 injectors.
Key Features:
- Plug and play engine control for Ford 4.6L or 5.4L 4V modular engines
- Included transmission harness gives plug-and-play control of 1998+ Ford 4R70W or 4R75W transmissions
- EV6 injector harness included
- High impedance injector drivers safely power most stock and Holley EFI injectors
- Included Bosch LSU 4.9 wideband oxygen sensor for accurate tuning
- Built-in 1 bar MAP sensor (can be disabled for boosted applications using an included external MAP sensor harness)
- Vacuum hose adapters included (1/8", 1/4", and 3/16")
- 4 programmable inputs for pressure sensors, activation triggers, nitrous, or trans-brake
- Boost control: boost vs. time, gear, RPM, speed, and boost safeties
- Nitrous control: wet or dry, progressive or non-progressive, rich/lean safeties, target closed-loop AFR
- Advanced tuning tables: four 1D tables, one 1D gear table, four 2D tables, one 2D gear table
- On-board diagnostic LEDs for ECU power, engine run, TPS calibration, cam signal, and more
- 3.5" touchscreen handheld with data logging, custom gauge display, and calibration wizard
- Compact ECU housing (7.45" x 4.1" x 1.66") mounts virtually anywhere; diagnostic LEDs must face up
- Free EFI tuning software for full laptop control
Specifications:
- Engine Platform: Ford 4.6L/5.4L 4V modular ("Mod") motor
- Ignition Coil Type: Stock
- Injector Connector: USCAR (EV6)
- Transmission Control: 4R70W (1998+)
- Drive-by-Wire: No
- Handheld Included: Yes, 3.5" touchscreen
- Part Number: 550-1319
Not recommended for marine applications; can be used off-road if mounted in a dry, protected location away from heat with proper wiring management. The included ignition components do not plug and play with the coil banks found on 1996-1998 applications — this kit is designed for coil-on-plug setups.
FAQ
What vehicles is this kit designed for?
It's built for Ford 4.6L/5.4L 4V modular engines commonly found in 1996-2004 Mustangs, 1995-2006 F150s, and 2002-2005 Explorers.
Does this kit control the transmission?
Yes, the included transmission harness gives plug-and-play control of 1998-and-newer Ford 4R70W or 4R75W transmissions.
Is a handheld display included?
Yes, a 3.5" touchscreen handheld is included with data logging, gauge display, and a calibration wizard.
Can this kit be used in a boosted application?
Yes. The built-in 1 bar MAP sensor can be disabled and replaced with an external MAP sensor using the included terminated connector.
Is this kit compatible with 1996-1998 coil banks?
No. It's designed for coil-on-plug applications and does not plug and play with the coil banks used on 1996-1998 applications.
Can this ECU be used in marine or off-road applications?
Marine use isn't recommended. Off-road use is acceptable if the ECU is mounted in a safe, dry, heat-protected location with proper wiring management.
