Engine Control Units

Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor...

PN 554-114LW is a Holley EFI Dominator ECU which utilizes a lighter potting material than the standard Dominator unit (reduces total weight by 1.8 lbs). This lightweight version is specifically...

Dominator® 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...

Holley EFI HP Roll Cage Bar Mount for Holley 554-113 ECU This all new Motion Raceworks Holley EFI ECU Mount makes mounting a Holley HP EFI computer very easy.  Featuring a swiveling set of rear roll...

Looking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness...

GM LS 24x Crank, 1x Cam - LS1/LS6 Engines - 4L60E/4L80E Transmission Control, No Laptop Required, 3.5" Touchscreen Included Take control of your LS engine with Terminator X Max! Don't settle for a...

Take 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...

Take control of your LS engine with Terminator X! 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...