HOLLEY
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Holley EFI LS (58X/4X) Engine Main Harness Extended for HP EFI/Dominator EFI 558-134
HOLLEY
$617.95Holley EFI LS (58X/4X) Engine Main Harness Extended for HP EFI/Dominator EFI 558-134 LS2/3/7+ (58x/4x) Engine Main Harness for HP EFI & Dominator EFI These harnesses are designed to fit most...558-134$617.95 -
Holley EFI LS (58X/4X) Engine Main Harness for HP EFI/Dominator EFI 558-103
HOLLEY
$580.95Holley EFI LS (58X/4X) Engine Main Harness for HP EFI/Dominator EFI 558-103 LS2/3/7+ (58x/4x) Engine Main Harness for HP EFI & Dominator EFI This harness has been designed to interface with 58x...558-103$580.95 -
Holley Terminator X Max GM Gen V LT4 Standalone ECU & Wire Harness Direct Injection Kit Late 550-1634-6
HOLLEY
$3,499.95Holley Terminator X Max GM Gen V LT4 Standalone ECU & Wire Harness Direct Injection Kit Late 550-1634-6 GM LT Drive-by-Wire Throttle Body and GM 6L80E and 6L90E Transmission Control Take...550-1634-6$3,499.95 -
Holley Terminator X Max GM Gen V LT4 Standalone ECU & Wire Harness Direct Injection Kit Early 550-1633-6
HOLLEY
$3,499.95Holley Terminator X Max GM Gen V LT4 Standalone ECU & Wire Harness Direct Injection Kit Early 550-1633-6 GM LT Drive-by-Wire Throttle Body and GM 6L80E and 6L90E Transmission Control Take...550-1633-6$3,499.95 -
Holley Terminator X Max GM Gen V LT4 Standalone ECU & Wire Harness Direct Injection Kit Late 550-1624
HOLLEY
$2,999.95Holley Terminator X Max GM Gen V LT4 Standalone ECU & Wire Harness Direct Injection Kit Late 550-1624 GM LT Drive-by-Wire Throttle Body Control Take control of your GM Gen V LT4, LT1, L83, or...550-1624$2,999.95 -
Holley Terminator X Max GM Gen V LT4 Standalone ECU & Wire Harness Direct Injection Kit Early 550-1623
HOLLEY
$2,999.95Holley Terminator X Max GM Gen V LT4 Standalone ECU & Wire Harness Direct Injection Kit Early 550-1623 GM LT Drive-by-Wire Throttle Body Control Take control of your GM Gen V LT4, LT1, L83, or...550-1623$2,999.95 -
Holley Terminator X Max GM LS Gen IV Standalone ECU & Wire Harness /Trans Control- 24x Late Truck w/6L80 - 550-917-6
HOLLEY
$2,249.95Holley Terminator X Max GM LS Gen IV Standalone ECU & Wire Harness /Trans Control- 58x Late Truck w/6L80 - 550-918-6 24x Crank - 1x Cam - Multec 2 Injectors - 6L80/90 Transmission Control - 3...550-917-6$2,249.95 -
Holley Terminator X Max GM LS Gen IV Standalone ECU & Wire Harness /Trans Control- 58x Late Truck w/6L80 - 550-918-6
HOLLEY
$2,249.95Holley Terminator X Max GM LS Gen IV Standalone ECU & Wire Harness /Trans Control- 58x Late Truck w/6L80 - 550-918-6 58x Crank - 4x Cam - EV6 Injectors - 6L80/90 Transmission Control - 3.5-inch...550-918-6$2,249.95 -
Holley Terminator X Max GM LS Gen IV Standalone ECU & Wire Harness /Trans Control/DBW - 58x Late Truck w/6L80 - 550-928-6
HOLLEY
$2,449.95Holley Terminator X Max GM LS Gen IV Standalone ECU & Wire Harness /Trans Control/DBW - 58x Late Truck w/6L80 - 550-928-6 58x Crank - 4x Cam - EV6 Injectors - Drive-By-Wire Throttle Body and...550-928-6$2,449.95 -
Holley EFI GM F-Body T-56 Transmission Harness for Terminator X Max ECU 558-481
HOLLEY
$210.95Holley EFI GM F-Body T-56 Transmission Harness for Terminator X Max ECU F-Body T-56 Transmission Harness for use with Terminator X Max ECU's on V3 Build 100, or Holley EFI V6 Build 300,...558-481$210.95 -
Holley EFI GM T-56 Magnum Transmission Harness for Terminator X Max ECU 558-480
HOLLEY
$210.95Holley EFI GM T-56 Magnum Transmission Harness for Terminator X Max ECU T-56 Magnum Transmission Harness for use with Terminator X Max ECU's on V3 Build 100, Holley EFI V6 Build 300, or later...558-480$210.95 -
Holley GM Dominator Drive-by-Wire EFI Wiring Harness Early Truck 558-429
HOLLEY
$247.95Holley GM Dominator Drive-by-Wire EFI Wiring Harness Early Truck 558-429 Dominator EFI GM DBW Harness-Early Truck. Compatible with GM part number 10379038. Only the following factory...558-429$247.95