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Ships within 48 hours · Estimated delivery Sep 12 - Sep 17
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Description
Ls2/3/7+ Engine Main Harness, Extended Length For Hp Efi & Dominator Efi-558-134These harnesses are designed to fit most 24x and 58x LS engines, from 1997 2012. They are a perfect fit for installers wanting to mount the any Holley EFI ECU inside of the passenger compartment where it is away from the elements, and easy to access. Features: Plug and play with Dominator, HP, Terminator X and Terminator X Max ECUs Designed for use on 24x 1x and 58x 4x LS engines Extended length allows you to mount the ECU in a wide variety of
These harnesses are designed to fit most 24x and 58x LS engines, from 1997-2012. They are a perfect fit for installers wanting to mount the any Holley EFI ECU inside of the passenger compartment where it is away from the elements, and easy to access.
Features:
- Plug and play with Dominator, HP, Terminator X and Terminator X Max ECUs
- Designed for use on 24x / 1x and 58x / 4x LS engines
- Extended length allows you to mount the ECU in a wide variety of locations, such as on a roll bar, or under the passenger seat
FEATURES
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.7 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Recommended
Excellent quality, a synthetic mixture that I will no longer use another brand for my car. I removed a little noise that I had
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 30, 2025
★★★★★ 5
Buy it !
I run this in our 2010 PT Cruiser Classic, you can hear the difference, pricey but worth it, will buy again.
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Reviewed in the United States on May 9, 2026
★★★★★ 5
Nice item
Great product thank you
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Reviewed in the United States on January 23, 2026
★★★★★ 5
Great
I recently used this motor oil for my car, and I’m very satisfied with the results. The engine runs smoother and quieter, and I noticed improved performance almost immediately. It provides excellent protection, especially during longer drives, and helps maintain steady engine temperature.
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Reviewed in the United States on September 8, 2025
★★★★★ 5
As expected it
Great brand, engine smoothness, value for money
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Reviewed in the United States on January 24, 2026
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