Innovation
not Imitation

Holley Performance Products

Holley Performance Products

Holley EFI Sensors

Holley EFI 554-140 GPS Device
$59.95

PLUG-AND-PLAY KITS

HOLLEY EFI ECU's

HOLLEY HP ECU
$1,154.95
Holley Dominator ECU
$1,990.95

Digital Displays

Holley EFI 553-106 Digital Dash
$883.95

Holley HP and DOMINATOR Harnesses

Holley 558-102 LS1 Main Harness
$402.95
Holley 558-103 LS2 Main Harness
$402.95
Holley 558-104 Univ. MPFI Harness
$336.95
Holley 558-401 J2A Harness
$145.95
Holley 558-406 GM DBW Harness
$157.95
Holley 558-409 USB Cable
$47.10
Holley HP Retrofit Kit - 550-500
$2,165.95