Chevy Master Engine Control Modules

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$282 Off

Holley |

#425550659

Holley 550-659 Dominator EFI Kit, LS2 Main Harness, GM, EV1

Data Acquisition Replacement Component Type:

Dominator ECU - ECM - VCM

Sold in Quantity:

Kit

$3,599.95

/kit

$3,881.95

$200 Off

Holley |

#425554114

Holley 554-114 Dominator EFI ECU

Ignition Type:

Universal

GTIN Code:

090127665794

Sold in Quantity:

Each

$2,499.95

/each

$2,699.95

$187 Off

Holley |

#425554119

Holley 554-119 Terminator EFI ECU

Transmission Control:

GTIN Code:

090127685556

Sold in Quantity:

Each

$2,349.95

/each

$2,536.95

-7%

Holley |

#425554142

Holley 554-142 Injector Driver Module with Harness

Transmission Control:

Sold in Quantity:

Each

$659.95

/each

$714.95

Edelbrock |

#32535711

Edelbrock 35711 Pro-Flo 4 ECU/Harness For Gen III 28X LS Engines

GTIN Code:

085347357116

Sold in Quantity:

Kit

$1,222.95

/each

Choosing an Electronic Fuel Injection Retrofit for Your Street Rod or Muscle Car

Fuel injection is here to stay and we delve into the benefits of such retrofit systems for your classic muscle car or street rod in our EFI retrofit buyer's guide!

Small Block and Big Block Chevy Engine Flexplate Guide

Over several generations of small block Chevy (and big block Chevy) engines there have been several changes that dictate what flexplate works with them. We’ll help you determine the correct flexplate for your Chevy engine in this buyer’s guide.

Transmission Interchange List Chevy, Ford, Mopar V8 Compatibility

Concerned about a transmission swap? Our engine transmission compatibility checker will help confirm what you need to make it happen.

Historic Chevy Performance Engines

Take a look at a few of the rare and wonderful Chevy engines in the Museum of American Speed!

55 Chevy Engine Build

Derek kicks off his 55 Chevy rebuild with a fresh small block.

Water Pump Options for the Chevy Crate Engine

In this Tech Tip, a customer asked for some recommendations on water pumps for his 1934 Chevy Coupe build.

Master Cylinder Brake Lines - 1967 Chevelle

Jeff demonstrates how to plumb the brake master cylinder with steel lines in his 1967 Chevelle. See tips on how to bend brake lines, use flare tools to make double flares, and give hard lines some spring.

6.0 LS Build Combinations: Recipes for 500-1,000 HP

Making great horsepower on a budget is the LS engine family’s claim to fame, but just like any other engine, the more power you ask of it the more you’ll need to spend.

Replacing Front Control Arms - 1967 Chevelle

Next up is the suspension on Jeff's 1967 Chevelle project. Learn how to properly disassemble and remove components, such as the spindles and brakes. See tips on replacing the control arm bushings and using the right tools to get the job done.

Upgrading the Cooling System for a Small Block Chevy

Learn how to successfully upgrade the cooling system for a 400 small block Chevy. Read tips for installing a water pump and auxiliary coolant lines using fittings and fuel hoses.

-7%

Holley |

#425554143

Holley 554-143 Injector Driver Module, Programmable, 8 Channel

Transmission Control:

Sold in Quantity:

Each

$659.95

/each

$714.95

$210 Off

Holley |

#425550602

Holley 550-602 HP EFI ECU & Harness Kit, LS1/LS6, Bosch O2

Ignition Type:

Factory GM

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

USB/CAN Tuning Cable

$2,849.95

/each

$3,059.95

$210 Off

Holley |

#425550603

Holley 550-603 HP EFI ECU & Harness Kit, LS2/LS3/LS7, Bosch O2

Ignition Type:

Factory GM

Injector Connector:

USCAR (EV6)

Tuner Style:

USB/CAN Tuning Cable

$2,849.95

/each

$3,059.95

$187 Off

Holley |

#425550604

Holley 550-604 HP EFI ECU & Harness Kit, Universal, Bosch O2

Ignition Type:

Universal

Injector Connector:

Jetronic / Minitimer (EV1)

Sold in Quantity:

Kit

$2,749.95

/each

$2,936.95

Rebate

Holley |

#425550903

Holley 550-903 Terminator X LS1/LS6 MPFI Kit

(2)

Ignition Type:

Factory GM

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

Touchscreen Handheld

$1,358.95

/each

$1,599.95

Rebate

Holley |

#425550905

Holley 550-905 Terminator X LS2/LS3 MPFI Kit

Ignition Type:

Factory GM

Injector Connector:

USCAR (EV6)

Tuner Style:

Touchscreen Handheld

$1,358.95

/each

$1,599.95

$241 Off

Holley |

#425550910

Holley 550-910 Terminator X 58X/4X EV1 LS MPFI Kit

Ignition Type:

Factory GM

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

Touchscreen Handheld

$1,358.95

/kit

$1,599.95

$301 Off

Holley |

#425550932

Holley 550-932 Terminator X Max 24X/1X EV6 LS MPFI Kit, DBW

Ignition Type:

Factory GM

Injector Connector:

USCAR (EV6)

Tuner Style:

Touchscreen Handheld

$1,698.95

/kit

$1,999.95

$331 Off

Holley |

#425550934

Holley 550-934 Terminator X Max 24X/1X EV6 LS MPFI Kit, DBW

Ignition Type:

Factory GM

Injector Connector:

USCAR (EV6)

Tuner Style:

Touchscreen Handheld

$1,868.95

/kit

$2,199.95

Rebate

Holley |

#425550937

Holley 550-937 Terminator X Ford MPFI Kit

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

Touchscreen Handheld

Throttle Style:

Cable Driven

$1,358.95

/kit

$1,599.95

Rebate

Holley |

#425550945

Holley 550-945 Terminator X Max Ford MPFI Kit

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

Touchscreen Handheld

Throttle Style:

Cable Driven

$1,698.95

/kit

$1,999.95

$496 Off

Holley |

#4255501620

Holley 550-1620 Terminator X Max GM Early LT, Drive-by-Wire

Ignition Type:

Factory GM

Tuner Style:

Touchscreen Handheld

Throttle Style:

Drive-By-Wire

$2,803.95

/kit

$3,299.95

$533 Off

Holley |

#4255501630

Holley 550-1630 Terminator X Max Early LT, Trans Control DBW

Ignition Type:

Factory GM

Tuner Style:

Touchscreen Handheld

Throttle Style:

Drive-By-Wire

$3,016.95

/kit

$3,549.95

$533 Off

Holley |

#4255501631

Holley 550-1631 Terminator X Max Late LT, Trans Control DBW

Ignition Type:

Factory GM

Tuner Style:

Touchscreen Handheld

Throttle Style:

Drive-By-Wire

$3,016.95

/kit

$3,549.95

Rebate

Holley |

#425550917

Holley 550-917 Terminator X Max Early Truck Engine MPFI Kit

(3)

Ignition Type:

Factory GM

Injector Connector:

Multec 2

Tuner Style:

Touchscreen Handheld

$1,698.95

/each

$1,999.95

$301 Off

Holley |

#425550919

Holley 550-919 Terminator X Max 24X/1X EV6 LS MPFI Trans Control

(1)

Ignition Type:

Factory GM

Injector Connector:

USCAR (EV6)

Tuner Style:

Touchscreen Handheld

$1,698.95

/kit

$1,999.95

Rebate

Holley |

#425550928

Holley 550-928 Terminator X Max LS2/LS3 MPFI Kit

Ignition Type:

Factory GM

Injector Connector:

USCAR (EV6)

Tuner Style:

Touchscreen Handheld

$1,868.95

/each

$2,199.95

Rebate

Holley |

#425550931

Holley 550-931 Terminator X Max LS2/LS3 MPFI Kit

Ignition Type:

Factory GM

Injector Connector:

USCAR (EV6)

Tuner Style:

Touchscreen Handheld

$1,698.95

/each

$1,999.95

Rebate

Holley |

#4255501211

Holley 550-1211 Terminator X, 2011-2012 Ford Coyote Ti-VCT, EV6

Ignition Type:

Ford Coyote

Injector Connector:

USCAR (EV6)

Tuner Style:

Touchscreen Handheld

$2,676.95

/kit

$3,149.95

Rebate

Holley |

#4255501212

Holley 550-1212 Terminator X, 2013-2015 Ford Coyote Ti-VCT, EV1

Ignition Type:

Ford Coyote

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

Touchscreen Handheld

$2,676.95

/kit

$3,149.95

Rebate

Holley |

#4255501214

Holley 550-1214 Terminator X, 2015.5-17 Ford Coyote Ti-VCT, EV1

Ignition Type:

Ford Coyote

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

Touchscreen Handheld

$2,676.95

/kit

$3,149.95

Rebate

Holley |

#4255501223

Holley 550-1223 Terminator X, 2003-06 Gen III Hemi, EV6 Injectors

Ignition Type:

Gen III Hemi Coil-on-Plug

Injector Connector:

USCAR (EV6)

Tuner Style:

Touchscreen Handheld

$1,741.95

/kit

$2,049.95

Rebate

Holley |

#4255501313

Holley 550-1313 Terminator X Max, 13-15 Coyote Ti-VCT, EV6, 4R70W

Ignition Type:

Ford Coyote

Injector Connector:

USCAR (EV6)

Tuner Style:

Touchscreen Handheld

$2,973.95

/kit

$3,499.95

Rebate

Holley |

#4255501317

Holley 550-1317 Terminator X Max, Ford Modular 2V, EV6 Injectors

Ignition Type:

Ford 2V Mod Stock Coils

Injector Connector:

USCAR (EV6)

Tuner Style:

Touchscreen Handheld

$2,038.95

/kit

$2,399.95

Rebate

Holley |

#4255501318

Holley 550-1318 Terminator X Max, Ford Modular 4V, EV1 Injectors

Ignition Type:

Ford 4V Mod Stock Coils

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

Touchscreen Handheld

$2,038.95

/kit

$2,399.95

Rebate

Holley |

#4255501409

Holley 550-1409 Terminator X Max, 11-12 Coyote Ti-VCT, EV6, DBW

Ignition Type:

Ford Coyote

Injector Connector:

USCAR (EV6)

Tuner Style:

Touchscreen Handheld

$2,973.95

/kit

$3,499.95

Rebate

Holley |

#4255501412

Holley 550-1412 Terminator X Max, 15.5-17 Coyote Ti-VCT, EV1, DBW

Ignition Type:

Ford Coyote

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

Touchscreen Handheld

$2,973.95

/kit

$3,499.95

Rebate

Holley |

#4255501413

Holley 550-1413 Terminator X Max, 15.5-17 Coyote Ti-VCT, EV6, DBW

Ignition Type:

Ford Coyote

Injector Connector:

USCAR (EV6)

Tuner Style:

Touchscreen Handheld

$2,973.95

/kit

$3,499.95

$229 Off

Holley |

#425550601N

Holley EFI 550-601N HP EFI ECU And Harness Kits

Ignition Type:

Universal

Injector Connector:

GM TPI

Sold in Quantity:

Kit

$2,999.95

/each

$3,228.95

$242 Off

Holley |

#425550602N

Holley 550-602N HP EFI ECU & Harness Kit, LS1/LS6, NTK O2

Ignition Type:

Factory GM

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

USB/CAN Tuning Cable

$3,099.95

/each

$3,341.95

Rebate

Holley |

#425550903T

Holley 550-903T Terminator X LS1 MPFI Kit

Ignition Type:

Factory GM

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

USB/CAN Tuning Cable

$1,231.95

/each

$1,449.95

Showing 1 - 36 of 125 results

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Chevy Master Engine Control Modules

Ignition Type

Brand

Transmission Family

Availability

Discounts

Engine Family

Price

Customer Rating

Products

Holley 550-659 Dominator EFI Kit, LS2 Main Harness, GM, EV1

Holley 554-114 Dominator EFI ECU

Holley 554-119 Terminator EFI ECU

Holley 554-142 Injector Driver Module with Harness

Edelbrock 35711 Pro-Flo 4 ECU/Harness For Gen III 28X LS Engines

Related Articles

Holley 554-143 Injector Driver Module, Programmable, 8 Channel

Holley 550-602 HP EFI ECU & Harness Kit, LS1/LS6, Bosch O2

Holley 550-603 HP EFI ECU & Harness Kit, LS2/LS3/LS7, Bosch O2

Holley 550-604 HP EFI ECU & Harness Kit, Universal, Bosch O2

Holley 550-903 Terminator X LS1/LS6 MPFI Kit

Holley 550-905 Terminator X LS2/LS3 MPFI Kit

Holley 550-910 Terminator X 58X/4X EV1 LS MPFI Kit

Holley 550-932 Terminator X Max 24X/1X EV6 LS MPFI Kit, DBW

Holley 550-934 Terminator X Max 24X/1X EV6 LS MPFI Kit, DBW

Holley 550-937 Terminator X Ford MPFI Kit

Holley 550-945 Terminator X Max Ford MPFI Kit

Holley 550-1620 Terminator X Max GM Early LT, Drive-by-Wire

Holley 550-1630 Terminator X Max Early LT, Trans Control DBW

Holley 550-1631 Terminator X Max Late LT, Trans Control DBW

Holley 550-917 Terminator X Max Early Truck Engine MPFI Kit

Holley 550-919 Terminator X Max 24X/1X EV6 LS MPFI Trans Control

Holley 550-928 Terminator X Max LS2/LS3 MPFI Kit

Holley 550-931 Terminator X Max LS2/LS3 MPFI Kit

Holley 550-1211 Terminator X, 2011-2012 Ford Coyote Ti-VCT, EV6

Holley 550-1212 Terminator X, 2013-2015 Ford Coyote Ti-VCT, EV1

Holley 550-1214 Terminator X, 2015.5-17 Ford Coyote Ti-VCT, EV1

Holley 550-1223 Terminator X, 2003-06 Gen III Hemi, EV6 Injectors

Holley 550-1313 Terminator X Max, 13-15 Coyote Ti-VCT, EV6, 4R70W

Holley 550-1317 Terminator X Max, Ford Modular 2V, EV6 Injectors

Holley 550-1318 Terminator X Max, Ford Modular 4V, EV1 Injectors

Holley 550-1409 Terminator X Max, 11-12 Coyote Ti-VCT, EV6, DBW

Holley 550-1412 Terminator X Max, 15.5-17 Coyote Ti-VCT, EV1, DBW

Holley 550-1413 Terminator X Max, 15.5-17 Coyote Ti-VCT, EV6, DBW

Holley EFI 550-601N HP EFI ECU And Harness Kits

Holley 550-602N HP EFI ECU & Harness Kit, LS1/LS6, NTK O2

Holley 550-903T Terminator X LS1 MPFI Kit

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