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550-918 Holley EFI Terminator X Max LS2/LS3 and Late 58x/4x LS Truck MPFI Kit with Transmission Control
$1,828.95Take control of your LS engine with Terminator X Max! Don't settle for a junkyard ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel strategies and the proven, race-winning technology of Holley... -
550-919 Holley EFI Terminator X Max LS1 24x/1x MPFI Kit with Transmission Control
$1,828.95Take control of your LS engine with Terminator X Max! Don't settle for a junkyard ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel strategies and the proven, race-winning technology of Holley... -
550-916 Holley EFI Terminator X Max LS1 24x/1x MPFI Kit with Transmission Control
$1,828.95Take control of your LS engine with Terminator X Max! Don't settle for a junkyard ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel strategies and the proven, race-winning technology of Holley... -
550-920 Holley EFI Terminator X Max LS2/LS3 and Late 58x/4x LS Truck MPFI Kit with Transmission Control
$1,799.95Take control of your LS engine with Terminator X Max! Don't settle for a junkyard ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel strategies and the proven, race-winning technology of Holley... -
550-928 Holley EFI Terminator X Max LS2/LS3 and Late 58X/4X LS Truck MPFI Kit with DBW Throttle Body and Transmission Control
$1,999.95Take control of your LS engine with Terminator X Max! Don't settle for a junkyard ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel strategies and the proven, race-winning technology of Holley... -
550-927 Holley EFI Terminator X Max Early Truck 24X/1X LS MPFI Kit with DBW Throttle Body and Transmission Control
$1,999.95Take control of your LS engine with Terminator X Max! Don't settle for a junkyard ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel strategies and the proven, race-winning technology of Holley... -
550-926 Holley EFI Terminator X Max LS1 24X/1X MPFI Kit with DBW Throttle Body and Transmission Control
$1,999.95Take control of your LS engine with Terminator X Max! Don't settle for a junkyard ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel strategies and the proven, race-winning technology of Holley... -
553-111 Holley EFI Holley EFI 12.3" Pro Dash
$2,375.95Trust. Whether it's your engine builder, team members or EFI System, trust is earned, not given.When your expensive engine, sponsorship and reputation are on the line, trust your engine monitoring to the Holley EFI 12.3" Pro Dash!The Holley EFI Pro Dash... -
550-614 Holley EFI Terminator LS MPFI Kit
$3,215.95Get all the great features of Terminator self-tuning EFI in a bolt-on system for GM's popular LS engines! The 550-614 kit controls fuel and spark through the Terminator's new 3.5" touchscreen! Install, answer a few basic questions and drive. No laptop... -
554-114 Holley EFI Dominator EFI ECU
$2,299.95Dominator® EFI Vehicle Management Systems are intended for all engine applications, from street to unlimited high-end racing applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator®... -
550-615 Holley EFI Terminator LS MPFI Kit
$4,499.95Get all the great features of Terminator self-tuning EFI in a bolt-on system for GM's popular LS engines! The 550-615 kit controls fuel, spark, and drive-by-wire through the Terminator's new 3.5" touchscreen! Install, answer a few basic questions and... -
550-613 Holley EFI Terminator LS MPFI Kit
$4,834.95Get all the great features of Terminator self-tuning EFI in a bolt-on system for GM's popular LS engines! The 550-613 kit controls fuel, spark, drive-by-wire and 4L60/4L80E transmissions through the Terminator's new 3.5" touchscreen! Install, answer a...
