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Holley

TERMINATOR X MPFI LS2 LS3 and LATE TRUCK

$1,574.95 $1,399.95 Save $175.00

SKU: H00E 550-910T

In Stock
In Stock
Ships by Jun 10
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Holley Terminator X MPFI Kit for GM LS Engines (58x Crank, 4x Cam, EV1 Injectors). Features real-time fuel map learn, high impedance injector drivers, Bosch LSU 4.9 wideband support, MAP sensor adapters, 4 inputs (12v, Ground, 5v, Frequency), 4 outputs (Ground, PWM), boost control (vs. time, gear, RPM, speed, safeties), nitrous control (single channel, wet/dry, progressive/non-progressive, rich/lean safeties, closed loop AFR target), on-board diagnostic LEDs, and advanced tables (4x 1D, 1x 1D per Gear, 4x 2D, 1x 2D per Gear). Includes CAN/USB tuning cable, compact ECU, and plug-and-play compatibility with Holley EFI accessories. Comes with 58x/4x LS Engine Main Harness, EV1 Injector Harness, Terminator X ECU, ECU Main Power Harness, Bosch LSU 4.9 Wideband Oxygen Sensor, Input/Output Harness, and vacuum adapters.

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Specifications

BrandHolley
Part NumberH00E 550-910T
Weight7.5 lb

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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