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Holley 558-321 LS Coil Harness

-7%

Holley 558-321 LS Coil Harness
Holley

|

#425558321

Holley 558-321 LS Coil Harness

$207.95

/each

In Stock

$224.95

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Product Summary

Universal Fit

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    Key Specs

    MFG. Part #558-321
    BrandHolley
    See more specs

    Need To Know

    Need help?

    855.313.9176
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    Holley 558-321 Details

    Are you tired of scouring the junkyard for stock ls coil sub harnesses? Introducing the new Holley EFI LS Coil Sub Harness. This coil sub harness is intended to be used with factory LS coils and various Holley EFI main harnesses with Coil-on-plug connectors. The Holley EFI LS coil sub harnesses are built with the same high quality connectors and wire loom found on all Holley EFI harnesses, guaranteeing a perfect match in your engine bay.
    • OEM connectors provide a secure connection between your ECU and Ignition Coils
    • Techflex F6 braided wire loom keeps your engine bay looking clean, while providing abrasion resistance
    • Plug & Play fitment
    • Can be used to replace a damaged factory coil harness

    Charts

    CARB Warning

    For race/ off road use only

    Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.
    CARB warning

    Holley 558-321 Specifications

    KEY SPECS
    MFG. Part #558-321
    BrandHolley
    GENERAL
    GTIN Code090127030745
    NotesLS Coil Harness.

    Ratings & Reviews

    5

    2 Reviews

    Overall Assessment

    Customers appreciate the product for its excellent quality and clear labelling, making it an optimal harness choice. An admired feature is its compatibility with the Holley EFI set-up, proving it to be a valuable upgrade. However, some users expressed disappointment with the harness not being included with certain kits, suggesting an area for potential improvement. Overall, the product outperforms its competitors in usability and material quality.

    Write A Review

    5

    2 reviews

    5

    2

    4

    0

    3

    0

    2

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    1

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    Filter by Ratings

    Quality harness.

    5.0

    a year ago

    Rob L.

    Phoenix, AZ

    Verified

    I bought the Holley Terminator X setup and got it all the way home (an hour away from my Speedway shop) where I realized the coil pack harness was missing, only to find out it was an option and was not included. I made the two hour round trip and paid the extra $200 for a harness that should be included with the Terminator. All that said, the harness is of good quality and clear labels.

    Would Recommend

    Nice upgrade

    5.0

    4 years ago

    Mike B

    Gladstone, MO

    Verified

    This is a well made harness and matches the Holley EFI harness for a great fit.

    Showing 2 of 2 reviews

    Questions & Answers

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    Fitment

    • GM LM4

    • GM LS6

    • GM LS2

    • GM LSA

    • GM LM7

    • GM LQ9

    • 6.2 Chevy LS V8

    • GM LM7

    • GM LQ9

    • 6.2 Chevy LS V8

    • GM LM7

    • GM LQ9

    • 6.2 Chevy LS V8

    • GM L76

    • GM LC9

    • GM LMG

    • GM LY5

    • GM LY5

    • GM LM7

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • GM LS1

    • GM LS3

    • GM LS1

    • GM LS1

    • GM LS6

    • GM LS2

    • GM LS3

    • GM LS4

    • GM LS4

    • 4.8 Chevy LS V8

    • GM LM7

    • 4.8 Chevy LS V8

    • GM L20

    • GM LM7

    • GM LY2

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ9

    • GM LQ4

    • GM LM7

    • GM LQ4

    • GM LQ9

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LS3

    • GM LM4

    • GM LMG

    • GM LY5

    • GM LM7

    • GM L59

    • GM LM7

    • GM LC9

    • GM LMG

    • GM LY5

    • GM LC9

    • GM LMG

    • GM LMG

    • GM LY5

    • GM LQ4

    • GM LMG

    • GM LY5

    • 4.8 Chevy LS V8

    • GM L59

    • GM LM7

    • 4.8 Chevy LS V8

    • GM LMG

    • GM LY5

    • 6.2 Chevy LS V8

    • GM LC9

    • GM LMG

    • GM LC9

    • GM LMG

    • GM LMG

    • GM LY5

    • GM LH6

    • GM LS2

    • GM LM4

    • GM LM4

    • GM LM4

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L33

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L33

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L33

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM LM7

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L33

    • GM LQ4

    • GM L20

    • GM LC9

    • GM LMG

    • GM L33

    • GM L59

    • GM LM7

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LM7

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • 4.8 Chevy LS V8

    • GM L20

    • GM LM7

    • GM LY2

    • GM LC9

    • GM LMG

    • GM LM7

    • GM L59

    • GM LM7

    • GM LQ4

    • GM LQ4

    • GM LQ4

    • 6.2 Chevy LS V8

    • GM LH8

    • GM LH8

    • GM LS1

    • GM LS3

    • GM LS1

    • GM LS2

    Customer Impersonation Script