Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
Vehicle Info NeededHOLLEYPART NUMBER: 510-550-931
Terminator X Max EFI ECU Kit for GM LS Truck and LS2/LS3 Drive-By-Wire Throttle
$1,69895$1999.95You Save$301.00
3 left in stock
Lowest Price GuaranteeGM LS
LS2/LS3/LS Truck Engine 58x Tooth Crank Reluctor
LS2/LS3/LS Truck Engine 58x Tooth Crank Reluctor
Terminator X Max EFI ECU KitGM LS 4.8/5.3/6.0 Truck, LS2, and LS3 Engines 58x Crank, 4x Cam, EV6 Injectors Drive-By-Wire Throttle Body Control Four 12-Volt and 5-Volt Programmable Inputs Includes 3.5 in. Touchscreen Handheld
Terminator X Max is a self-tuning EFI ECU kit for Gen IV GM LS truck, LS2, and LS3 engines with drive-by-wire throttle control, real-time fuel learn, and Holley EFI tuning through the included 3.5 in. touchscreen handheld.
Holley 550-931 Highlights:
- Fits GM LS 4.8/5.3/6.0 truck, LS2, and LS3 engines.
- 58x crank, 4x cam, EV6 injector harness.
- Drive-by-wire throttle body control.
- Real-time self-learning fuel with 1-bar MAP sensor.
- Bosch LSU 4.9 wideband oxygen sensor included.
- Includes 3.5 in. touchscreen handheld and main harness.
Part TypeEngine Control Module
BrandHOLLEY
Package Height9.4
Package Width12.8
Package Length14.3
Weight11.07 PG
Part CategoryPerformance Parts
Part FitmentUniversal
Package Qty1
Package TypeEA
No Questions
No Reviews
Items You Need
![61-Piece Heat Shrink Tubing Kit [Black]](https://www.jegs.com/images/mini_200/500/555/555-10630.jpg)
![Crimp Connector Kit [160 Pieces]](https://www.jegs.com/images/mini_200/500/555/555-10705.jpg)
JEGS
Heavy Duty Circuit Tester for 6, 12 & 24 Volt Systems
Part Number : 555-80569
$899$9.99
You Save$1.00
![Colored Electrical Tape [5 pack]](https://www.jegs.com/images/mini_200/500/555/555-w549.jpg)
![Electrical Tape [3/4 in. x 60 ft.]](https://www.jegs.com/images/mini_200/500/555/555-w502.jpg)
JEGS
Convoluted Tubing Kit Includes 1/4", 3/8", 1/2", 3/4" tubing self-fusing tape and heat shrink tubing
Part Number : 555-10665
$3534$46.99
You Save$11.65
JEGS
3-Piece Tubing Installation Tool Kit Fits 1/4" to 7/8" Tubing
Part Number : 555-10669
$1699$18.99
You Save$2.00
ITEM YOU MAY ALSO CONSIDER
HOLLEY
550-931T Terminator X Max MPFI Controller Kit
Part Number : 510-550-931T
$1,65695$1949.95
You Save$293.00
HOLLEY
Part Number : 510-550-931T
$1,65695$1949.95
You Save$293.00
REPLACEMENT PARTS
Some parts are not legal for use in California or other states with similar laws / regulations
