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Instruction Sheets for Part Number HLY-558-411
Charts & Guides for Part Number HLY-558-411
Holley EFI Systems Wiring Harnesses
Fuel Injection System Wiring Harnesses, Dominator EFI, GM LSx, Dual Drive-by-Wire Harness, for Throttle Bodies to Dominator EFI Systems, Each
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Estimated Ship Date from Texas: Monday 10/19/2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
558-411
Part Type:
Product Line:
Summit Racing Part Number:
HLY-558-411
UPC:
090127680629
Quantity:
Sold individually.
Notes:
Harness connects dual drive-by-wire GM throttle bodies to Dominator EFI systems.
Holley EFI Systems Wiring Harnesses
Holley offers a variety of direct replacement EFI wiring harnesses, including multi-port, sequential, and throttle body injection styles. These units are made with premium components to ensure better reliability and performance for your ride--and they're compatible with many engine swaps. Holley EFI systems wiring harnesses are sold individually or as a kit; choose the model needed for your fuel injection application.
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Some parts are not legal for use in California or other states with similar laws / regulations
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