Innovation
not Imitation

Holley HP and DOMINATOR Harnesses

28 products found. Showing 21 - 28
Holley 558-406 GM DBW Harness

Part #: 953

$175.95
$157.95

Holley 558-409 USB Cable

Part #: 948

$52.99
$47.10

Holley 558-410 Crank/Cam IGN Harness

Part #: 955

$68.47
$61.62

Holley 558-416 LS3 MAP Interface Harness

Part #: 944

$27.99
$24.56

Holley 558-500 LS1/6 24X BOSCH Injector Harness

Part #: 959

$589.99
$520.95

Holley 558-504 Univ. V8 EFI Harness

Part #: 961

$529.95
$458.95

Custom Holley Dominator EFI Systems

Part #: 179

Due to the custom nature of EFI systems we ask that you call to go over your combination so we can get you all the proper parts. Please Call 231-747-7520

Holley HP Retrofit Kit - 550-500

Part #: 430

$2,299.00
$2,165.95

28 products found. Showing 21 - 28