Best in 7 days
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jun 22 - Jun 27
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For Your Every Summer RSVP, with Code: SUMMER15
Description
GM 58X EFI HARNESS KITGM 58X EFI HARNESS KIT GM LS1 6, 24X Crank Sensor, Bosch Injector Overview An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit for your GM LS engine comes complete with the main harness, power harness and injector harness to support your primary system! NOTICE: You will need to purchase an ECU and O2 Sensor to make
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
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.0 ★★★★★
Based on 791 reviews
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Product Reviews
★★★★★ 5
Very good product
Fits true to form....really nice
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
★★★★★ 5
Love it
Color: Jordy Blue
Love the color and the perfect fit
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Reviewed in the United States on May 30, 2026
★★★★★ 5
Es de muy buena calidad
Color: Jordy Blue
Exelente muy bueno
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Reviewed in the United States on March 27, 2026
★★★★★ 4
Great product!
Durable and very pretty! Great quality and easy to grip! Great value for the price!
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Reviewed in the United States on May 21, 2025
★★★★★ 5
10/10
Color: White
Came very fast ! & looks greats on my daughter iPad 🥰
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Reviewed in the United States on June 9, 2026
