


Holley EFI Systems Wiring Harnesses
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Holley EFI Systems Wiring HarnessesThis part is legal for sale or use on Racing Use Only Vehicles The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street. This harness is designed for LS1 6 Engines, from 1997 2004. This harness interfaces with 24x Crank and 1x Cam sensors.
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Your Holley EFI Systems Wiring Harnesses orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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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.
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4.8 ★★★★★
Based on 321 reviews
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Product Reviews
★★★★★ 1
Dog did not like it
Color: 6PC-Beef-Red
Not impressed at all. My dog is a toy and bone hoarder. She does not touch these bones at all, it sits there all day while she grabs all her other “treasures”
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
★★★★★ 5
Great we'll worth
My bullys love these and they last forever well worth my money
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Reviewed in the United States on June 12, 2025
★★★★★ 5
Nice sturdy toy
Size: Large (5" x 3.25" x 9")
VERY STURDY
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Reviewed in the United States on June 7, 2026
★★★★★ 5
One TOUGH toy!
Size: Large (5" x 3.25" x 9")
The first of these toys survived 2 Huskies, an Aussie, 2 GSDs and our Pitmix, I only got a new one because first one is soooo old! It is a favorite toy and there would be unhappiness if it were not available. This is one TOUGH toy, great bounce and spin, we love this toy.
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Durable, long lasting . 8months of use before came apart.
Size: Large (5" x 3.25" x 9"), Size: Large (5" x 3.25" x 9")
I bought this toy may 2025 it is now January 2026 I am finally having to replace . I have a chessie , almost 2 yo he is not an insane chewer but he does make the fabric “ tuff toys” look like a joke . Those are gone in ten minutes . This one last and last and last . It’s a great buy. In process of ordering my third one decided to write a review. I never write reviews . Such a simple product but worth every penny . My dogs favorite toy . Will stay in the arsenal .
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Reviewed in the United States on January 28, 2026