SKU: 50086912291

Injector Driver Module - 554-143

Sale price$296.98 Regular price$329.98
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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11

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Description

Injector Driver Module - 554-143Overview: Introducing the Holley EFI Programmable 8 Channel Injector Driver Module. The ultimate solution for methanol burning engines that require a large set of secondary injectors. The Holley EFI Injector Driver Module will have you in complete control of your fuel injected behemoth, featuring easily programmable injector current curves, injector test fire mode, two datalogger outputs, multiple peak and hold current settings and more. This module

Overview:

Introducing the Holley EFI Programmable 8 Channel Injector Driver Module. The ultimate solution for methanol burning engines that require a large set of secondary injectors. The Holley EFI Injector Driver Module will have you in complete control of your fuel injected behemoth, featuring easily programmable injector current curves, injector test fire mode, two datalogger outputs, multiple peak and hold current settings and more. This module will allow you to expand the capabilities of your current Electronic Fuel Injected Engine, keeping you at the front of the field!

Features:

  • Engineered specifically to add a secondary set of high peak current injectors when utilizing a Holley EFI Dominator ECU
  • Can be triggered by either negative or positive trigger to ease install in all EFI applications, be it a stock or aftermarket ECU
  • Eight easily programmable channels for precise injector control
  • Easy to wire Tyco Super Seal Connector
  • Eight pre-programmed injector current curves
  • Peak current settings from 4A to 10A
  • Hold current settings from 1A to 2.5A
  • Peak hold duration settings from .5 to 1.0ms
  • Injector test fire program for quick troubleshooting while in the field
  • 8 RGB LEDs indicate proper operation as well as log faults
  • Two outputs (Ground and 0-5V) can be run to an ECU to datalog any injector faults
  • Pre-Programmed in Position 7 for Billet Atomizer 325-800 or Precision 500 Lb/Hr Injectors
  • Connector - Pins - or Harness not included.

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Brand Holley EFI
Emission Code 4
Product Type Injector Driver
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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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: 50086912291

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4.2 ★★★★★
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Mom4two
Cuba, US
★★★★★ 5
Great sock for everyday
Size: Large, Color: Black/Gray (6 Pairs)
So these are awesome but they are slightly thinner than older versions, shorter too. Just FYI if you a long time UA customer. If you have never had their socks, I love them personally and only like one other brand better. They aren’t overly thick and they allow your feet to breath. I never have sweaty feet in these even in my warm boots. I also like that they don’t cut into my feet or get holes in the toes over long terms. The only reason I’ve thrown these out has been fraying near the ankle or someone (kids) thieving them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 28, 2019
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Verified Purchase
LC
Grantham, US
★★★★★ 5
LOVE THEM!!
Size: Small, Color: (001) Black / Black / Castlerock
LOVE! These socks are so comfortable! I wear a 5 in women's and a 3 in big kid shoes. The small fit me perfectly. I see where some say they run small but I can't say that was an issue for me. They are "snug" but thats what you want with a no show sock. I feel they have support vs the ones i used to buy at Walmart. They are very soft! I am actually buying more today and throwing my other ones in the trash!
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Reviewed in the United States on February 18, 2026
L
Verified Purchase
Lucy Mejia
Alexandria, US
★★★★★ 5
So will not write down your foot
Size: Medium, Color: (001) Black / Black / Castlerock
I love these socks. They have a little bit of gel on the top of the heel for support in your tennis shoes and so your socks don’t write down. Very good quality.
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Reviewed in the United States on May 6, 2026
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Verified Purchase
Twins9
Chelsea, US
★★★★★ 5
Comfy and Stay Put
Size: Medium, Color: (002) Black / Black / Halo Gray
These socks are honestly great. They’re super thin and light, so once you have them on, you kind of forget they’re even there. No bulky feeling in your shoes at all. The best part is they actually stay on. I hate no-show socks that slide down after five minutes, and these don’t do that. The little grip on the heel really works, so you’re not constantly adjusting them all day. They’re breathable too, which is nice if your feet run warm. They dry fast and don’t get that gross sweaty feeling. And there’s no annoying seam on the toe, so nothing rubs or feels uncomfortable. Basically, they’re just comfy, stay put, and don’t cause problems — which is all I want from socks.
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Reviewed in the United States on January 16, 2026
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Verified Purchase
swwkennyg
Birmingham, US
★★★★★ 5
Perfect sucks
Size: Medium, Color: (001) Black / Black / Castlerock
Wonderful socks . The weight is perfect !! These do not slip when in a shoe they stay out !!
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Reviewed in the United States on April 14, 2026

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