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    Sale!

    Holley EFI LS Spark Plug Wire Set, Cut-to-Fit, Red/Gray 180° Boots for Smart Coil | 561-115

    Vendor: Holley EFI
    Part Number: 561-115
    Save $25
    Sale Price $193.95 Regular Price $218.95

    Available to order. In-stock orders typically ship in 1 to 2 business days.

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
    Free Shipping on Orders Over $99 | Excludes freight shipments
    International Shipping Available: email sales@berryperformancesales.com for a quote.
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    Holley EFI's universal "cut-to-fit" spark plug wire set is built for GM LS engines running Holley Smart Coils. Each wire ships with the spark plug terminal and boot pre-installed, while the coil end is left unterminated with the boot and terminal included so you can trim to the length your install needs.

    Specifications:

    • Application: GM LS (Gen III/IV), Holley Smart Coil
    • Wire Diameter: 8.2mm
    • Resistance: 350 ohms per foot
    • Boot Color: Red wire with gray, 180-degree coil-end boots
    • Boot Material: Silicone
    • Length: 36" unterminated for custom routing
    • Terminals: Locking dual-crimp style
    • Part Number: 561-115

    FAQ

    What coil is this wire set designed for?

    It's designed for GM LS engines running Holley's Smart Coil, using a 180-degree coil-end boot.

    Why is the coil end unterminated?

    The 36" unterminated coil end lets you trim each wire to the exact length your install needs, then crimp on the included terminal.

    What is the resistance rating?

    These wires offer 350 ohms per foot, meeting or exceeding OE resistance specs while maintaining strong noise suppression.

    What colors are available?

    This set is available in red wire with gray boots; black and gray wire options are also offered in the Holley EFI spark plug wire lineup.

    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
    • No P.O. Boxes. International orders need a shipping quote, so email us first.

    Read the full Shipping Policy

    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

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