1 of 10

The Tuner Store

EFI Terminator X - GM LS1/LS6 - 24x Crank - 1x Cam - EV1 Injectors - 3.5 in. Touchscreen

Sale Sold out Pre-order
Regular price $1,358.95 USD
Regular price $1,799.95 USD Sale price $1,358.95 USD
Shipping calculated at checkout.

In stock

Ask a question
  • All orders are dispatched the next business day!

  • We will beat any price. We back all products with a 1 year guarantee.

Order in the next 0 hours 0 minutes to get it by         /09/2026

Guaranteed Safe Checkout

Description
Item Specifics
Holley EFI Terminator X - GM LS1/LS6

HP EFI Multi-Port Fuel Injection System V8 4 bbl, Single Plane Small Block Chevy, Early to Late Heads

Overview
HP Multi-Port EFI systems for small or big block Chevys are ready for the street or strip with the simple swap of an intake! Whether you have a stock engine, crate or custom-built engine, HP Multi-Port systems can help you maximize performance! By utilizing a laptop (or the optional 5.7" full color touch screen LCD) along with the HP's self-tuning capabilities, the HP Multi-Port EFI system will get you to the cruise or race in no time. HP Multi-Port Systems include: intake manifold, billet throttle body, ECU, wiring harness, fuel rails, and related small parts. Fuel pump and injectors are available separately to fit your requirements.

The following sensors are included: TPS - IAC - MAP - CTS - MAT - Wideband O2 ECU is certified to ISO 8846, SAE J1171 United States Coast Guard Requirements for Ignition Protection Fire Resistance. Holley HP EFI systems are equipped with 4 programmable inputs and 4 programmable outputs that are ideal for most vehicles with a single power adder. This feature allows the user to configure the system to support a wide range of controls including boost control, progressive nitrous, water/meth injection, speed inputs, fuel pump control, AC inputs, timing retard inputs and various other uses. When selecting an ECU, users need to ensure their planned controls can be run with the 4 inputs and 4 outputs as certain combinations may use more I/Os than are available. If more I/Os are required, users should choose the Dominator VMS. MPFI Systems do not include injectors or a fuel pump. They need to be sized for the application and can be purchased seperately from Holley. These kits require the use of a small diameter distributor, such as a small cap GM HEI or most MSD distributors. A large cap GM HEI will not fit with these kits.
Software and firmware updates can be downloaded here for free.

Features:
  • For GM LS1/LS6 engines with 24x crank reluctor - with EV1 Injectors.
  • Real-Time fuel map learn, takes the guess work out of tuning your base fuel table.
  • High Impedance Injector Drivers will safely power most Stock LS injectors, and Holley EFI Injectors. Injector support chart provided in the instructions (Will not control Low Impedance Injectors)
  • All of the new Terminator X systems utilize the Bosch LSU 4.9 wideband to relay AFR information to the ECU for accurate reading and precise tuning control.
  • On-Board 1bar MAP sensor, is perfect for N/A or Nitrous engine combos. If your combination requires a 2+Bar, we recommend GM 12592525, and our adapter part number 558-416.
  • MAP Sensor vacuum hose adapters (1/8th ???? ?? and 3/16ths)
  • 4 Inputs ???? 12v, Ground, 5v, and Frequency, for things such as additional pressure sensors, or activation triggers for nitrous activation, or a trans brake
  • Boost Control ???? Boost vs Time, Boost vs Gear, Boost vs RPM, Boost vs Speed, Boost Safeties
  • Nitrous Control ???? Single Channel of Wet or Dry, Progressive or Non-Progressive, Rich/Lean Safeties, and target Closed Loop AFR
  • Advanced Tables ???? 4x 1D Tables, 1x 1D per Gear Table, 4x 2D Tables, 1x 2D per Gear Table, can be used for any custom tables you can dream up, such as Flex Fuel Sensor Offset Table, or a custom fuel or oil pressure safety!
  • On-Board Diagnostic LEDS for: ECU Power ???? Engine Run ???? Wideband Status ???? TPS Calibration ???? Crank Signal ????Cam Signal. Allow you to identify any Critical engine issues at a glance
  • The included 3.5" Touchscreen Handheld contains a calibration wizard, that allows you to quickly build a base tune for any LS engine. Additionally the handheld provides internal data-logging and a fully customizable gauge display.
  • The compact ECU size allows you to mount it virtually anywhere. Remember, diagnostic LEDS must face up!
  • Plug and play compatible with more Holley EFI accessories such as; analog style gauges, shift lights, various modules, and coming soon, 12.3" digital dash support!
  • Free EFI Tuning Software for complete control of your Terminator X power plant
  • Includes: 24x 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 assorted vacuum adapters.


Details:
  • Crank Reluctor: 24x
  • Ignition Type: GM LS 24x
  • Injector Connector: Jetronic / Minitimer (Bosch)
  • Terminator LS Options: Fuel, Spark


Links
Instruction Sheet
Instruction Sheet

Description

Item Specifics

Testimonials

Great Selection and Fast Shipping!

I recently purchased a new laptop from this online electronics store, and I couldn't be happier with my experience. The website had a wide selection of products to choose from, and the ordering process was seamless. My laptop arrived earlier than expected, and it was well-packaged to ensure its safety during transit. I highly recommend this store to anyone in need of quality electronics.

- Sarah Johnson

Excellent Customer Service!

I had an issue with my order, and I contacted the customer service team for assistance. I was pleasantly surprised by their prompt response and willingness to help resolve my issue. They were courteous and professional throughout the entire process, and they went above and beyond to ensure my satisfaction. Kudos to the customer service team for their exceptional service!

- David Smith

Best Prices Around!

"I've been shopping for a new smartphone, and I found the best deal on this online electronics store. Not only did they offer competitive prices, but they also had discounts and promotions that made my purchase even more affordable. The checkout process was straightforward, and my order arrived on time as promised. I'll definitely be coming back for my future tech needs.

- Emily Brown

Impressive Product Quality

I recently purchased a camera from this online store, and I'm blown away by the quality of the product. It exceeded my expectations in terms of performance and durability. The website provided detailed product descriptions and reviews, which helped me make an informed decision. Overall, I'm extremely satisfied with my purchase and would highly recommend this store to others.

- Michael Anderson