Suggested searches

Plant-based protein powders
Vegan leather handbags
Bedroom decor
Waterproof jackets
Hoodies

Learn more about how we use your data to personalize your experience and ads. Recommendations are for informational purposes only.

The Tuner Store

Holley Dominator EFI ECU

Holley Dominator EFI ECU

The Tuner Store

Dominator EFI ECU

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$2,499.95$2,812.95

11% off

Color

Black

Quantity

Product description loading

Product description loading

This is the product description text that will appear here.

You might also like

Winners Circle

Holley 554-114 ECU Only Dominator

Holley 553-108

Winners Circle

Holley 553-108 Holley EFI 3.5in LCD Touch Screen Controller

Holley EFI Lightweight Dominator ECU

11% off

The Tuner Store

Holley EFI Lightweight Dominator ECU

$2,649.95$2,981.95

Holley 300-658BK EFI Hi-Ram Intake Manifold, fits 5.7L, 6.1L, and 6.4L Gen III Hemi engines, Black Finish, sold individually

Winners Circle

Holley 300-658BK Gen III Hemi Hi-Ram EFI Manifold 5.7L/6.1L/6.4L

Product Image 1

11% off

Complete Street Performance

Holley EFI 550-650 - Dominator EFI ECU Kit

(1)

$3,299.95$3,712.95

Big3RacingParts

Holley EFI- 558-401 Dominator EFI Auxiliary Harness

Holley EFI Terminator X Max - Gen IV 58x Crank - 4x Cam - EV1 Injectors - Drive-By-Wire Throttle Body Control - 3.5 in. Touch

24% off

The Tuner Store

EFI Terminator X Max - Gen IV 58x Crank - 4x Cam - EV1 Injectors - Drive-By-Wire Throttle Body Control - 3.5 in. Touchscreen

$1,698.95$2,249.95

MailOrder Tuner

4.9

(780)

MPVI2 Standard and Pro Models in stock.,Hp Tuners Idle Tuning - Mail Order Tuner Ls1 Programmer, Ls Pcm Tuning Software, Tuning Software For Ls Motors

MPVI2 Standard and Pro Models in stock.,Hp Tuners Idle Tuning - Mail Order Tuner Ls1 Programmer, Ls Pcm Tuning Software, Tuning Software For Ls Motors

Full Size Truck Dyno Tuning - Pcm of NC

Full Size Truck Dyno Tuning - 2003-2013 Full Size Truck Electric Dual Fan conversion kit , Tuning Software For Ls Motors, Hp Tuners Idle Tuning, Custom truck tuning

Holley Dominator EFI GM Drive-By-Wire Harness

11% off

The Tuner Store

Dominator EFI GM Drive-By-Wire Harness

Off-Board Power Holley EFI Harness HP Dominator ECU

BenchForce

Off-Board Power Holley EFI Harness HP Dominator ECU

Holley Unterminated Universal Main Harness

11% off

The Tuner Store

Unterminated Universal Main Harness

Holley EFI Terminator X Max - LS1/LS624x Crank - 1x Cam - EV6 Injectors - Transmission Control - 3.5 in. Touchscreen

24% off

The Tuner Store

EFI Terminator X Max - LS1/LS624x Crank - 1x Cam - EV6 Injectors - Transmission Control - 3.5 in. Touchscreen

$1,698.95$2,249.95

Product Image 1

14% off

Complete Street Performance

Holley EFI 550-936 - Terminator X MPFI System

$1,540.99$1,799.95

Holley Terminator EFI ECU

11% off

The Tuner Store

Terminator EFI ECU

$2,349.95$2,643.95

Holley 5.0L Ford Engine Main Harness

11% off

The Tuner Store

5.0L Ford Engine Main Harness

Holley 300-950 Hi-Ram Intake Manifold, EFI, fits 265-400 Small Block Chevy engines, 105mm, aluminum, natural finish, 1500-8000 RPM, sold individually

Winners Circle

Holley 300-950 Hi-Ram EFI Intake Manifold SBC

Holley EFI Terminator X Max - Gen IV 58x Crank - 4x Cam - EV6 Injectors - Drive-By-Wire Throttle Body Control - USB/CAN Tunin

24% off

The Tuner Store

EFI Terminator X Max - Gen IV 58x Crank - 4x Cam - EV6 Injectors - Drive-By-Wire Throttle Body Control - USB/CAN Tuning Cable

$1,656.95$2,193.95

Holley Dominator EFI Kit - LS2 Main Harness with EV1 Injector Harness

11% off

The Tuner Store

Dominator EFI Kit - LS2 Main Harness with EV1 Injector Harness

$3,299.95$3,712.95

Complete Street Performance

4.8

(1.2K)

Product Image 1

Product Image 1

Product Image 1

Product Image 1

Product Image 1

Product Image 1

11% off

Complete Street Performance

Holley EFI 550-651 - Dominator EFI ECU Kit

$3,299.95$3,712.95

Holley EFI 8 Channel CAN EGT Controller

11% off

The Tuner Store

Holley EFI 8 Channel CAN EGT Controller

$949.95$1,068.95

Holley EFI Terminator X Max - Service ECU

11% off

The Tuner Store

Holley EFI Terminator X Max - Service ECU

$1,299.95$1,462.95

Holley EFI CAN Input/Output Module - Without Harness

11% off

The Tuner Store

Holley EFI CAN Input/Output Module - Without Harness

Holley GM Gen V Gdi Early, Sub Harness

10% off

The Tuner Store

GM Gen V Gdi Early, Sub Harness

Big3RacingParts

8HP Holley EFI Interface Pre-order

Holley Universal Unterminated Injector Harness

11% off

The Tuner Store

Universal Unterminated Injector Harness

Holley EFI Terminator X - Ford Mod Motor 2V/4V Kit Compatible w/ Smart coils and EV1 injectors

24% off

The Tuner Store

EFI Terminator X - Ford Mod Motor 2V/4V Kit Compatible w/ Smart coils and EV1 injectors

$1,741.95$2,306.95

Holley Dominator ECU 26 Pin J2B (P2B) Extension Harness

17% off

EFI Conversions

J2B P2B 26-pin Extension Harness for Holley EFI Dominator ECU

Holley EFI Terminator X - Gen IV - 58x Crank - 4x Cam - EV1 Injectors - 3.5 in. Touchscreen

25% off

The Tuner Store

EFI Terminator X - Gen IV - 58x Crank - 4x Cam - EV1 Injectors - 3.5 in. Touchscreen

$1,358.95$1,799.95

Holley Ford Modular 2 Valve EFI Harness Kit

25% off

The Tuner Store

Ford Modular 2 Valve EFI Harness Kit

$1,358.95$1,799.95

The Tuning School

The Tuning School

5

(47)

HP Tuners MPVI4

HP Tuners MPVI4

AEM X-Series OBDII Wideband UEGO AFR Controller Gauge

HP Tuners GM E90/T93 Upgrade Kit

17% off

EFI Conversions

Engine Control Unit (ECU) Connector Kit for Holley J4 (P4) - Genuine AMP Brand

Holley EFI Dominator Flange Throttle Body

11% off

The Tuner Store

Holley EFI Dominator Flange Throttle Body

$2,349.95$2,643.95

Holley 558-483 Terminator X Bluetooth Module, built in EFI Wizard, compatible with iOS or Android based smart phones, sold individually

Winners Circle

Holley 558-483 Terminator X Bluetooth Module

Product Image 1

11% off

Complete Street Performance

Holley EFI 554-114LW - EFI Lightweight Dominator ECU

$2,649.95$2,981.95

Holley EFI Voltage Gauge

11% off

The Tuner Store

Holley EFI Voltage Gauge

Holley EFI Terminator X - Ford Mod Motor 4V Kit Compatible w/ Stock Coils and EV6 injectors

24% off

The Tuner Store

EFI Terminator X - Ford Mod Motor 4V Kit Compatible w/ Stock Coils and EV6 injectors

$1,741.95$2,306.95

Holley Dominator EFI ECU Bracket CIRCUITWORXS

CIRCUITWORX

Holley Dominator EFI ECU Bracket

Jolt Systems

Holley EFI Terminator X Service ECU

Big3RacingParts

Holley EFI- 558-408 j2A, j2B, j3, j4 Connector & Pin Kit

Holley EFI Terminator X - GM LS1/LS6 - 24x Crank - 1x Cam - EV6 Injectors - 3.5 in. Touchscreen

25% off

The Tuner Store

EFI Terminator X - GM LS1/LS6 - 24x Crank - 1x Cam - EV6 Injectors - 3.5 in. Touchscreen

$1,358.95$1,799.95

EVILENERGY

EVILENERGY

4.3

(2.2K)

EVIL ENERGY PTFE Hose End Fitting for PTFE Hose Only (3/4/6/8/10/12AN) - Black - EVILENERGY

EVIL ENERGY PTFE Hose End Fitting for PTFE Hose Only (3/4/6/8/10/12AN) - Black - EVILENERGY

[1 PC]

[1PC]

[8AN to 3/8 Inch,45 Degree]

Big3RacingParts

Holley EFI- 554-186 Holley EFI 8 Channel CAN EGT Kit

Jolt Systems

Holley EFI Terminator X Max Service ECU

(1)

Holley Dominator ECU 26 Pin J3 (P3) Drive by Wire Extension Harness

17% off

EFI Conversions

J3 P3 26-pin Drive by Wire Extension Harness for Holley EFI Dominator ECU

Holley 522-108X Terminator X Fuel Injectors, 100 lb/hr at 60 PSI base fuel pressure, High Impedance, PICO/EV6 Style, sold as a set of 8

Winners Circle

Holley 522-108X Terminator X 100 lb/hr Fuel Injectors, set of 8

Speed Engineering

Speed Engineering

4.8

(4.8K)

Holley EFI ECU Bracket - Dominator

34% off

The Tuner Store

Holley EFI ECU Bracket - Dominator

2% off

Pro Touring Store

Holley Dominator EFI ECU Only 554-114

$2,499.95$2,542.00

Product Image 1

11% off

Complete Street Performance

Holley 554-114 - Engine Control Module - Dominator EFI - Universal - Each

$2,499.95$2,812.95

Holley EFI 554 - 142 INJECTOR DRIVER MODULE, W/ HARNESS - HP Race Brands - Holley - Electronics

HP Race Brands

Holley EFI 554-142 INJECTOR DRIVER MODULE, W/ HARNESS

Holley Injector Driver Harness

11% off

The Tuner Store

Injector Driver Harness

Holley Smart Coil.webp

CRUZ Performance

Holley Smart Coil

Holley Universal 6 Cylinder Injector Harness

11% off

The Tuner Store

Universal 6 Cylinder Injector Harness

Product Image 1

16% off

Complete Street Performance

Holley EFI 550-943 - Terminator X Max MPFI System

$1,894.99$2,249.95

Holley GM 58X EFI Harness Kit

11% off

The Tuner Store

GM 58X EFI Harness Kit

$949.95$1,068.95

Holley EFI Terminator X Max - LS1/LS624x Crank - 1x Cam - EV1 Injectors - Drive-By-Wire Throttle Body and Transmission Contro

24% off

The Tuner Store

EFI Terminator X Max - LS1/LS624x Crank - 1x Cam - EV1 Injectors - Drive-By-Wire Throttle Body and Transmission Control - USB/CAN Tuning Cable

$1,826.95$2,418.95

Product Image 1

16% off

Complete Street Performance

Holley EFI 550-944 - Terminator X Max MPFI System

$1,894.99$2,249.95

Valvetronic Designs

Valvetronic Designs

Valvetronic Designs

4.8

(2.6K)

Holley Dominator ECU 26 Pin J1B (P1B) Extension Harness

17% off

EFI Conversions

J1B P1B 26-pin Extension Harness for Holley EFI Dominator ECU

HLY550-601

Winners Circle

Holley 550-601 ECU & Harness Kit - GM TPI/Holley Stealth Ram

Holley EFI Terminator X Max - Gen IV 4l60E/4l80E (USCAR) DBC - ICT Billet HLY-550-918

Exclusive offer available

ICT Billet

Holley EFI Terminator X Max - Gen IV 4l60E/4l80E (USCAR) DBC

$2,000.00$2,219.99

Holley HP EFI Ecu

25% off

The Tuner Store

HP EFI ECU

$1,783.95$2,362.95

ICT Billet Holley Dominator EFI vehicle management system unit in black with branding

Exclusive offer available

ICT Billet

Holley Dominator ECU

Product Image 1

11% off

Complete Street Performance

Holley EFI 554-114 - Integrated electronic transmission control, drive by wire throttle control, dual wideband oxygen sensor capability, extensive amount of inputs and outputs for various combinations, and much more

(1)

$2,499.95$2,812.95

Richard Holdener Performance

4.9

(513)

Truck Plus Cam and Spring Package for LS truck engines - Richard Holdener Performance

Truck Plus Cam and Spring Package for LS truck engines - Richard Holdener Performance

LS7 Lifters and Trays LS/LT/4.8/5.3/6.0 - Richard Holdener Performance

Truck Plus Cam and Spring Package for LS truck engines - Richard Holdener Performance

BTR CHROMOLY ONE PIECE PUSHRODS - 5/16" DIAMETER - .080 WALL THICKNESS - 7.400" - Richard Holdener Performance

Holley EFI Crank Trigger System - BBC

11% off

The Tuner Store

Holley EFI Crank Trigger System - BBC

Product Image 1

14% off

Complete Street Performance

Holley EFI 550-937 - Terminator X MPFI System

$1,541.99$1,799.95

Holley EFI Terminator X Max - LS1/LS624x Crank - 1x Cam - EV6 Injectors - Drive-By-Wire Throttle Body and Transmission Contro

24% off

The Tuner Store

EFI Terminator X Max - LS1/LS624x Crank - 1x Cam - EV6 Injectors - Drive-By-Wire Throttle Body and Transmission Control - USB/CAN Tuning Cable

$1,826.95$2,418.95

Big3RacingParts

Holley 554-153 Terminator X Max Service ECU

Southwest Speed

TERMINATOR X MAX MPFI ECU,LS1,LS6,EV6,TRANSMISSION

Holley EFI Terminator X Max - 4V Ford Mod Motor Stock coils - EV1 injectors - 4R70W Transmission Control

24% off

The Tuner Store

EFI Terminator X Max - 4V Ford Mod Motor Stock coils - EV1 injectors - 4R70W Transmission Control

$2,038.95$2,699.95

Holley EFI Ford Coyote Ti-VCT Control Module

25% off

The Tuner Store

Holley EFI Ford Coyote Ti-VCT Control Module

$1,231.95$1,631.95

Holley EFI Terminator X Max - LS1/LS624x Crank - 1x Cam - EV1 Injectors - Drive-By-Wire Throttle Body and Transmission Contro

24% off

The Tuner Store

EFI Terminator X Max - LS1/LS624x Crank - 1x Cam - EV1 Injectors - Drive-By-Wire Throttle Body and Transmission Control - 3.5 in. Touchscreen

$1,868.95$2,474.95

Holley Dominator ECU 34 Pin J1A (P1A) Extension Harness

17% off

EFI Conversions

J1A P1A 34-pin Extension Harness for Holley EFI Dominator ECU

Holley 300-951 Hi-Ram Intake Manifold, EFI, fits 265-400 Small Block Chevy engines, 95mm, aluminum, natural finish, 1500-8000 RPM, sold individually

Winners Circle

Holley 300-951 Hi-Ram EFI Intake Manifold SBC

Holley EFI Terminator X - Gen III LS1/LS6 - ICT Billet HLY-550-903

Exclusive offer available

ICT Billet

Holley EFI Terminator X - Gen 3 LS EV1

$1,600.00$1,739.99

Holley Dominator EFI Multi Map Selector

11% off

The Tuner Store

Dominator EFI Multi Map Selector

Big3RacingParts

Holley Dominator ECU 554-114

Big3RacingParts

Holley EFI- 558-308 Main Power Harness for HP, Dominator EFI

Holley EFI Terminator X Stealth 4150 - Gold - 4 Injectors - 650 HP

25% off

The Tuner Store

EFI Terminator X Stealth 4150 - Gold - 4 Injectors - 650 HP

$1,783.95$2,362.95

Holley EFI Terminator X - Ford MPFI Kit

25% off

The Tuner Store

Holley EFI Terminator X - Ford MPFI Kit

$1,358.95$1,799.95

Holley EFI Terminator X Universal MPFI Kit

25% off

The Tuner Store

Holley EFI Terminator X Universal MPFI Kit

$1,358.95$1,799.95

Holley EFI Terminator X - GM LS1/LS6 - 24x Crank - 1x Cam - EV6 Injectors - USB/CAN Tuning Cable

25% off

The Tuner Store

EFI Terminator X - GM LS1/LS6 - 24x Crank - 1x Cam - EV6 Injectors - USB/CAN Tuning Cable

$1,231.95$1,631.95

Cleetus Mcfarland

Cleetus Mcfarland

4.9

(38.4K)

Holley Universal V8 MPFI EFI HARNESS KIT

11% off

The Tuner Store

Universal V8 Mpfi EFI Harness Kit

$899.95$1,012.95

Holley EFI Terminator X Max - 2V Ford Mod Motor Stock Coils - EV6 injectors - 4R70W Transmission Control

24% off

The Tuner Store

EFI Terminator X Max - 2V Ford Mod Motor Stock Coils - EV6 injectors - 4R70W Transmission Control

$2,038.95$2,699.95

On3 Performance

Holley EFI CAN Input/Output Module Kit- 554-165

Holley Unterminated 16 injectors MPFI harness

42% off

The Tuner Store

Unterminated 16 injectors MPFI harness

Holley EFI Terminator X - Gen IV - 58x Crank - 4x Cam - EV1 Injectors - USB/CAN Tuning Cable

25% off

The Tuner Store

EFI Terminator X - Gen IV - 58x Crank - 4x Cam - EV1 Injectors - USB/CAN Tuning Cable

$1,231.95$1,631.95