Instant Rebates
Call Our Support Line
24 Hours / 7 Days a Week!  
Same Day Shipping Before 11 PM ET
My Cart
Shop By Vehicle
Shop By
Close Menu
Shop By Vehicle
Top Categories
All Categories

All Categories

Free Catalog
E-Mail Signup
My Account
Track Order
Gift Certificates

Holley 558-490

Sniper EFI Main Harness

Holley 558-490


jegs shipping
Estimated ship date 11/20/17 if Ordered Today
Easy Returns
Easy Returns
Lowest Price Guarantee
Lowest Price Guarantee
ON SALE - $9.99 OFF
Holley 558-490 Sniper EFI Main Harness $89.96
Sniper EFI Main Harness
  • Main Battery Harness with Fuse and Pump Relay

  • Holley 558-490 Details

    Replacement Parts & Accessories


    • (1) 5’ 12g Main Battery Power Wire
    • (1) 5’ 12g Main Battery Ground Wire
    • (1) 30A Fuse with Cover with Mounting Tab
    • (1) 40A 5-Pole Relay with Mounting Tab
    • (1) 20’ 12g Fuel Pump 12v Power Wire
    • (1) 3’ 20g Crank Signal Positive Wire
    • (1) 3’ 20g Crank Signal Negative Wire
    • (1) 3’ 20g Coil Input Wire
    • (1) 5’ 20g Switch 12v Ignition Wire

    The Holley Sniper EFI Self-Tuning Kits feature all the benefits of EFI, a perfect option for street cars, muscle cars and off road vehicles. Eliminate typical carburetor cold starting issues, hesitations, flooding and vapor lock. Sniper EFI four fuel injector kits can support up to 650HP. The Self-Tuning ECU makes it an easy, no hassle way to get the most performance out of your vehicle without a laptop computer. With available shiny, black ceramic, or classic bronze throttle body finishes, the Sniper EFI kit also brings style under the hood.

     JEGS Easy Kits are designed by JEGS high performance racing professionals to help you get all the performance parts you need for your race car, hot rod or truck.

    Before you leave us... Receive a free catalog or join our email list

    Sign up to receive our catalog or subscribe to our email list now to see our exclusive email only specials, new products, and offers!

    Request CatalogJoin Email List