Skip to content

800-959-2330

$9.99 flat rate shipping on all eligible orders!

Holley

Filters

  • Sold out
    $1,849.95 - $1,849.95
    $1,849.95
    $1,949.95
    $1,949.95 - $1,949.95
    $1,949.95

    Holley HLY550-872K Stealth EFI 4150 Master Kit - Gold Finish

    Holley

    Description: The Holley HLY550-872K Stealth EFI 4150 Master Kit in a striking gold finish is designed for those looking to enhance their fuel injec...

    View full details
    $1,849.95 - $1,849.95
    $1,849.95
    $1,949.95
    $1,949.95 - $1,949.95
    $1,949.95
    Sold out
  • Sold out
    $1,999.95 - $1,999.95
    $1,999.95
    $2,099.95
    $2,099.95 - $2,099.95
    $2,099.95

    Holley HLY550-869K Sniper EFI Quadrajet Master Kit - Gold

    Holley

    Description: The Holley Sniper EFI Quadrajet Master Kit in Gold is designed for those looking to enhance their fuel injection system. This kit incl...

    View full details
    $1,999.95 - $1,999.95
    $1,999.95
    $2,099.95
    $2,099.95 - $2,099.95
    $2,099.95
    Sold out
  • Sold out
    $2,199.95 - $2,199.95
    $2,199.95
    $2,299.95
    $2,299.95 - $2,299.95
    $2,299.95

    Holley HLY550-841 Sniper 4500 EFI Stealth System Shinny Finish

    Holley

    Description: The Holley Sniper 4500 EFI Stealth System in a shiny finish is designed for those looking to enhance their fuel injection setup. This ...

    View full details
    $2,199.95 - $2,199.95
    $2,199.95
    $2,299.95
    $2,299.95 - $2,299.95
    $2,299.95
    Sold out
  • Sold out
    $3,499.95 - $3,499.95
    $3,499.95
    $3,699.95
    $3,699.95 - $3,699.95
    $3,699.95

    Holley HLY550-660 Dominator EFI Kit - LS2 w/Trans Contr & DBW

    Holley

    Description: This kit includes an Engine Control Module, a wiring harness, a transmission harness, and a drive-by-wire system, all tailored for GM ...

    View full details
    $3,499.95 - $3,499.95
    $3,499.95
    $3,699.95
    $3,699.95 - $3,699.95
    $3,699.95
    Sold out
  • Sold out
    $3,349.95 - $3,349.95
    $3,349.95
    $3,499.95
    $3,499.95 - $3,499.95
    $3,499.95

    Holley HLY550-655 Dominator EFI Kit - Ford w/COP

    Holley

    Description: This kit features an Engine Control Module, a wiring harness, and a Coil On Plug harness, providing a comprehensive solution for those...

    View full details
    $3,349.95 - $3,349.95
    $3,349.95
    $3,499.95
    $3,499.95 - $3,499.95
    $3,499.95
    Sold out
  • Sold out
    $3,149.95 - $3,149.95
    $3,149.95
    $3,299.95
    $3,299.95 - $3,299.95
    $3,299.95

    Holley HLY550-652 Dominator EFI Kit - Universal

    Holley

    Description: The Holley HLY550-652 Dominator EFI Kit is designed for those looking to enhance their engine management system. This universal kit in...

    View full details
    $3,149.95 - $3,149.95
    $3,149.95
    $3,299.95
    $3,299.95 - $3,299.95
    $3,299.95
    Sold out
  • Sold out
    $3,149.95 - $3,149.95
    $3,149.95
    $3,299.95
    $3,299.95 - $3,299.95
    $3,299.95

    Holley HLY550-651 Dominator EFI Kit - LS2/LS3 Late Truck

    Holley

    Description: This comprehensive kit includes an Engine Control Module and a wiring harness specifically tailored for GM LS-Series engines. It provi...

    View full details
    $3,149.95 - $3,149.95
    $3,149.95
    $3,299.95
    $3,299.95 - $3,299.95
    $3,299.95
    Sold out
  • Sold out
    $3,149.95 - $3,149.95
    $3,149.95
    $3,299.95
    $3,299.95 - $3,299.95
    $3,299.95

    Holley HLY550-650 Dominator EFI Kit - GM LS

    Holley

    Description: The Holley HLY550-650 Dominator EFI Kit is designed for GM LS-Series engines, specifically the LS1 and LS6 models. This comprehensive ...

    View full details
    $3,149.95 - $3,149.95
    $3,149.95
    $3,299.95
    $3,299.95 - $3,299.95
    $3,299.95
    Sold out
  • Sold out
    $2,869.95 - $2,869.95
    $2,869.95
    $2,999.95
    $2,999.95 - $2,999.95
    $2,999.95

    Holley HLY550-606N HP ECU & Harness - Ford MPFI NTK

    Holley

    Description: This product includes an Engine Control Module (ECM) and a wiring harness, along with an NTK oxygen sensor. Key Features: Engine...

    View full details
    $2,869.95 - $2,869.95
    $2,869.95
    $2,999.95
    $2,999.95 - $2,999.95
    $2,999.95
    Sold out
  • Sold out
    $2,969.95 - $2,969.95
    $2,969.95
    $3,099.95
    $3,099.95 - $3,099.95
    $3,099.95

    Holley HLY550-602N HP ECU & Harness LS1/LS6 NTK

    Holley

    Description: The Holley HP ECU & Harness is designed for use with LS1 and LS6 engines, providing a comprehensive engine control solution. This ...

    View full details
    $2,969.95 - $2,969.95
    $2,969.95
    $3,099.95
    $3,099.95 - $3,099.95
    $3,099.95
    Sold out
  • Sold out
    $2,609.95 - $2,609.95
    $2,609.95
    $2,749.95
    $2,749.95 - $2,749.95
    $2,749.95

    Holley HLY550-601 ECU & Harness Kit - GM TPI/Holley Stealth Ram

    Holley

    Description: This kit includes an Engine Control Module and a wiring harness, providing the necessary components for engine management. It is suita...

    View full details
    $2,609.95 - $2,609.95
    $2,609.95
    $2,749.95
    $2,749.95 - $2,749.95
    $2,749.95
    Sold out
  • Sold out
    $1,999.95 - $1,999.95
    $1,999.95
    $2,099.95
    $2,099.95 - $2,099.95
    $2,099.95

    Holley HLY550-511-3XR Sniper 2 EFI Master Kit Return Retrofit

    Holley

    Description: The Holley HLY550-511-3XR Sniper 2 EFI Master Kit Return Retrofit is designed for those looking to enhance their fuel injection system...

    View full details
    $1,999.95 - $1,999.95
    $1,999.95
    $2,099.95
    $2,099.95 - $2,099.95
    $2,099.95
    Sold out
SUPPORT 24/7
SECURE PAYMENT
FLAT RATE SHIPPING
AMAZING SELECTION

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare