SKU: 98664655383

Holley 558-463 - Terminator X Wideband Adapter Harness

Sale price$60.08 Regular price$66.75
Save 10%

Pay in installments of $16.69 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 20 - Sep 25

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Holley 558-463 - Terminator X Wideband Adapter HarnessThese standalone Terminator X ECU's (Electronic Control Unit) are intended to be used as service components for your Terminator X EFI installation. The Terminator X ECU features real time fuel learn, high impedance injector drivers, an integrated 1bar MAP sensor, and 4 programmable inputs and outputs. The inputs and outputs are ideal for electric fans, boost control solenoids, or progressive nitrous control. The Terminator X Max ECU features real time

These standalone Terminator X ECU's (Electronic Control Unit) are intended to be used as service components for your Terminator X EFI installation. The Terminator X ECU features real-time fuel learn, high impedance injector drivers, an integrated 1bar MAP sensor, and 4 programmable inputs and outputs. The inputs and outputs are ideal for electric fans, boost control solenoids, or progressive nitrous control. The Terminator X Max ECU features real-time fuel learn, high impedance injector drivers, an integrated 1bar MAP sensor, electronic transmission control, drive-by-wire throttle body control, and 4 programmable inputs and outputs. The inputs and outputs are ideal for electric fans, boost control solenoids, progressive nitrous control, and much more.
 

Features:

  • OEM (Original Equipment Manufacturer) Injectors supported, with part numbers provided in the handheld wizard, or software.
  • Genuine Bosch LSU 4.9 Wideband Control (Will not work with LSU 4.2 Oxygen Sensors)
  • 8 Built-in multi-color diagnostic LED's allow you to quickly identify a variety of potential system issues, such as a failed TPS (Throttle Position Sensor) Autoset - faulty crank or cam sensors, or potential oxygen sensor issues!
  • Built in 1bar MAP (Manifold Air Pressure) sensor. On boosted applications, you can disable the internal MAP sensor, and utilize an external MAP sensor.
  • 4 Inputs – 12v, Ground, 5v, and Frequency, for things such as additional pressure sensors, or activation triggers for nitrous activation, or a trans brake (Fuel and Oil Pressure Inputs are pre-terminated)
  • 4 Outputs – Ground, PWM - , for accessories such as; fans, boost control, nitrous control, IAC Kit, and More
  • GM LS and LT, Ford Coyote, and Mopar Gen V Drive-by Wire Throttle Body Control (Terminator X Max Only)
  • GM 4L60 and 4L80, and Ford 4R70W Transmission Control (Terminator X Max Only)
  • 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
  • Free EFI Tuning Software for complete control of your Terminator X power plant

Applicaton

  • Universal

Specs

Brand Holley EFI
Product Type Harness
Part Number 558-463
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 98664655383

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.2 ★★★★★
Based on 5 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
D
Verified Purchase
Denise Beck
Omaha, US
★★★★★ 5
Christmas present
Color: Black
This is a good quality box. She loved the color and I appreciated the ease of giftability.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
A
Verified Purchase
Amazon Customer
Waukegan, US
★★★★★ 5
Equal
Color: White
Looks like the picture shown ( bought it for my aunt and that's what she said )
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 23, 2026
M
Verified Purchase
Molly
Waukegan, US
★★★★★ 1
Defective Item
Color: Black, Color: Black
The door broke off immediately out of the package and the screws are stripped so they can’t be tightened into place. I might superglue it because I don’t want to go through the hassle of returning it and it’s the only way they’d offer even a partial refund for a defective product when I asked.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
D
Verified Purchase
Debra
San Leandro, US
★★★★★ 5
Works well
Quality very good. Liked the hygrometer
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 29, 2025
H
Verified Purchase
Herwin
Lexington, US
★★★★★ 4
keep your cigar safe
not too sure about the hygrometer, but really nice looking, great quality, and what an amazing hole puncher it brings.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 23, 2025

recommand products