Buy Holley EFI in Australia
If you are looking to buy Holley EFI in Australia, 12Volt Motorsports stocks the Holley Dominator EFI ECU in Melbourne and ships Australia-wide. Dominator is the pick for GM and traditional V8 builds: LS swaps, Big Block and Small Block combinations, drag cars and street machines, with deep GM integration including transmission control. We build and wire Dominator installs in house.
Why Dominator for V8 Builds
Dominator speaks GM natively: factory sensors, drive by wire, transmission control on common GM automatics, and enough inputs and outputs to run the whole car. It supports up to 16 cylinders, dual channel wideband, boost control, nitrous control, traction control and full data logging, which is why it is the staple of Australian drag racing and street machine builds, naturally aspirated, turbocharged, supercharged or on nitrous. For an LS swap or a built V8 where you want one system controlling engine and driveline, it is the straightest path.
Wired Properly
Holley installs run on M22759/32 Tefzel wire, sleeved in Raychem DR25, with GM OEM style connectors at every factory sensor, which we stock: alternator, knock, coolant temp, flex fuel and more. Pair with motorsport sensors where the build goes beyond factory.
Frequently Asked Questions
Where can I buy Holley EFI in Australia?
12Volt Motorsports stocks the Holley Dominator EFI ECU in Melbourne, ships Australia-wide, and builds the harnesses and installs to go with it.
What is the Holley Dominator ECU for?
GM and traditional V8 builds: LS swaps, Big Block and Small Block applications, drag cars and street machines. Deep GM integration including factory sensor and transmission control support.
Can the Dominator control my transmission?
Dominator supports electronic transmission control on common GM automatics. Tell us your driveline and we will confirm the setup for your combination.
What engines does the Holley Dominator suit?
American V8 engines including LS, Gen III, Gen IV, Big Block and Small Block applications, up to 16 cylinders. It suits large displacement drag and street builds, naturally aspirated or on boost or nitrous.
Is the Dominator suitable for LS engine builds?
Yes. It is commonly used on serious LS, Gen III and Gen IV builds, especially where the setup needs boost control, nitrous control, data logging, wideband control and room for future expansion.
Do you build Holley harnesses?
Yes. We build and modify Holley harnesses in house using M22759/32 Tefzel wire and DR25, and we wire complete Dominator installs including sensors and power distribution.
Do you ship Holley products Australia-wide?
Yes. We ship to Sydney, Brisbane, Adelaide, Perth, Canberra, Hobart, Darwin and everywhere in between.
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Need Advice?
Call us on 0458 102 134 or email 12voltmotorsports@gmail.com with your V8 combo and we will spec the Dominator install end to end.
