Mercury Engine Control Modules

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$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

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

Replacing Sway Bars in a Mercury Comet

How to replace sway bars in a Mercury Comet and the advantages that come with it.

Gen III/IV LS Engine ID Guide

Looking to swap the venerable LS engine into your hot rod, muscle car, or classic truck? Take a look at our detailed identification guide for Gen III/IV LS engines before you hit the salvage yard or swap meet!

Tubular Control Arms on an S-10

In this Tech Tip, John responds to a customer question about tubular control arms.

How to Paint Engine Blocks- Complete Guide

Make Your Engine Stand Out with These Engine Block Painting Tips

Car Cooling System Components

How does a cooling system work? Why is your engine overheating? What parts should you be giving your attention to? This guide answers all your questions.

Control Arm Upgrade

Save some weight by swapping in some upgraded control arms! Employee Steve L. reviews the 1970-81 Camaro Upper Control Arm.

Historic Indy Engines

To celebrate the upcoming 106th running of the Indianaplis 500, here's a look back at a few of the engines that have competed at the Brickyard over the years.

Approved Upgrades for the GM Crate 602/604

Tips and tricks to pull the most from your GM 602/604 platform.

Engine Cylinder Numbers

Engine Building Tool Guide

Professional insight on some useful crate engine tools that will improve your engine building experience.

$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

BluePrint BPPLS530 LS Engine Controller Kit

BluePrint Engines |

#227BPPLS530

BluePrint BPPLS530 LS Engine Controller Kit

Transmission Control:

Sold in Quantity:

Each

$2,299.00

/kit

-6%

Holley |

#4255581270

Holley 558-127 EFI Benchtop Harness, Firmware, Dash, ECU Testing

GTIN Code:

090127136768

Sold in Quantity:

Each

$249.95

/kit

$266.95

Edelbrock |

#32535712

Edelbrock 35712 Pro-Flo 4 ECU/Harness For Gen IV 58X LS Engines

GTIN Code:

00085347357123

Sold in Quantity:

Each

$1,210.95

/each

$269 Off

Holley |

#425550655

Holley 550-655 Dominator EFI Kit, COP Main Harness, Ford, EV1

Data Acquisition Replacement Component Type:

Dominator ECU - ECM - VCM

Sold in Quantity:

Kit

$3,499.95

/kit

$3,768.95

FAST 303000 XFI Sportsman EFI Multi-Port Engine Control System

FAST Fuel Air Spark Technology |

#282303000

FAST 303000 XFI Sportsman EFI Multi-Port Engine Control System

Ignition Type:

Universal

Tuner Style:

USB/CAN Tuning Cable

Sold in Quantity:

Kit

$1,990.95

/each

FiTech |

#521383015

FiTech 38301-5 Ultra Ram External ECU, Engine Management System

GTIN Code:

812061032056

$308.00

/each

FiTech |

#521700501

FiTech 70050-1 Fuel Injection Engine Management System, LS ECU

Sold in Quantity:

Each

Drive-By-Wire Capable:

$567.00

/each

FiTech |

#521300031

FiTech 30003-1 Replacement ECU for Fitech 30003 Go Street EFI

(1)

$271.00

/each

Holley |

#9109669

Holley 550-903 Terminator X LS1/LS6 MPFI Kit w/Pigtail/CAN Cable

Tuner Style:

Touchscreen Handheld

Sold in Quantity:

Kit

$1,472.73

/kit

$242 Off

Holley |

#425550603N

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

Ignition Type:

Factory GM

Injector Connector:

USCAR (EV6)

Tuner Style:

USB/CAN Tuning Cable

$3,099.95

/each

$3,341.95

$496 Off

Holley |

#4255501620LSD

Holley 550-1620LSD 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 |

#4255501630LSD

Holley 550-1630LSD 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 |

#4255501631LSD

Holley 550-1631LSD 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

$229 Off

Holley |

#425550605N

Holley EFI 550-605N HP EFI ECU And Harness Kits

Ignition Type:

Universal

GTIN Code:

090127687482

Sold in Quantity:

Kit

$2,999.95

/each

$3,228.95

$229 Off

Holley |

#425550606N

Holley 550-606N HP EFI ECU & Harness Kit, Ford V8 MPFI, NTK O2

Ignition Type:

Ford TFI

Injector Connector:

Jetronic / Minitimer (EV1)

Sold in Quantity:

Kit

$2,999.95

/each

$3,228.95

$242 Off

Holley |

#425550607N

Holley 550-607N HP EFI ECU & Harness Kit, LS2/LS3/LS7, 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 |

#425550619N

Holley 550-619N 2011-2012 Ford Coyote Ti-VCT HP EFI Kit, NTK O2

Ignition Type:

Ford Coyote

Injector Connector:

USCAR (EV6)

Throttle Style:

Cable Driven

$3,228.95

/kit

$3,799.95

Rebate

Holley |

#425550628N

Holley 550-628N Ford Coyote Ti-VCT Capable HP EFI Kit, NTK O2

Ignition Type:

Ford Coyote

Injector Connector:

USCAR (EV6)

Tuner Style:

USB/CAN Tuning Cable

$2,633.95

/kit

$3,099.95

Rebate

Holley |

#425550904T

Holley 550-904T Terminator X Early Truck Engine MPFI Kit

Ignition Type:

Factory GM

Injector Connector:

Multec 2

Tuner Style:

USB/CAN Tuning Cable

$1,231.95

/each

$1,449.95

$293 Off

Holley |

#425550919T

Holley 550-919T Terminator X Max 24X/1X EV6 LS MPFI Kit

Ignition Type:

Factory GM

Injector Connector:

USCAR (EV6)

Tuner Style:

USB/CAN Tuning Cable

$1,656.95

/kit

$1,949.95

Rebate

Holley |

#425550927T

Holley 550-927T Terminator X Max Early Truck Engine MPFI Kit

Ignition Type:

Factory GM

Injector Connector:

Multec 2

Tuner Style:

USB/CAN Tuning Cable

$1,826.95

/each

$2,149.95

Rebate

Holley |

#425550928T

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

Ignition Type:

Factory GM

Injector Connector:

USCAR (EV6)

Tuner Style:

USB/CAN Tuning Cable

$1,826.95

/each

$2,149.95

Rebate

Holley |

#425550904

Holley 550-904 Terminator X Early Truck LS MPFI Kit

(3)

Ignition Type:

Factory GM

Injector Connector:

Multec 2

Tuner Style:

Touchscreen Handheld

$1,358.95

/each

$1,599.95

$241 Off

Holley |

#425550909

Holley 550-909 Terminator X 24X/1X EV6 LS1/LS6 MPFI Kit

Ignition Type:

Factory GM

Injector Connector:

USCAR (EV6)

Tuner Style:

Touchscreen Handheld

$1,358.95

/kit

$1,599.95

Rebate

Holley |

#425550916

Holley 550-916 Terminator X Max LS1/LS6 MPFI Kit

(3)

Ignition Type:

Factory GM

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

Touchscreen Handheld

$1,698.95

/each

$1,999.95

Rebate

Holley |

#425550918

Holley 550-918 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

$301 Off

Holley |

#425550920

Holley 550-920 Terminator X Max 58X/4X EV1 LS MPFI Kit

Ignition Type:

Factory GM

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

Touchscreen Handheld

$1,698.95

/kit

$1,999.95

Showing 1 - 72 of 130 results

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Popular Parts and Makes

Mercury Engine Control Modules

Ignition Type

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Department

Transmission Family

Availability

Engine Family

Discounts

Price

Customer Rating

Products

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

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

Related Articles

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

BluePrint BPPLS530 LS Engine Controller Kit

Holley 558-127 EFI Benchtop Harness, Firmware, Dash, ECU Testing

Edelbrock 35712 Pro-Flo 4 ECU/Harness For Gen IV 58X LS Engines

Holley 550-655 Dominator EFI Kit, COP Main Harness, Ford, EV1

FAST 303000 XFI Sportsman EFI Multi-Port Engine Control System

FiTech 38301-5 Ultra Ram External ECU, Engine Management System

FiTech 70050-1 Fuel Injection Engine Management System, LS ECU

FiTech 30003-1 Replacement ECU for Fitech 30003 Go Street EFI

Holley 550-903 Terminator X LS1/LS6 MPFI Kit w/Pigtail/CAN Cable

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

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

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

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

Holley EFI 550-605N HP EFI ECU And Harness Kits

Holley 550-606N HP EFI ECU & Harness Kit, Ford V8 MPFI, NTK O2

Holley 550-607N HP EFI ECU & Harness Kit, LS2/LS3/LS7, NTK O2

Holley 550-619N 2011-2012 Ford Coyote Ti-VCT HP EFI Kit, NTK O2

Holley 550-628N Ford Coyote Ti-VCT Capable HP EFI Kit, NTK O2

Holley 550-904T Terminator X Early Truck Engine MPFI Kit

Holley 550-919T Terminator X Max 24X/1X EV6 LS MPFI Kit

Holley 550-927T Terminator X Max Early Truck Engine MPFI Kit

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

Holley 550-904 Terminator X Early Truck LS MPFI Kit

Holley 550-909 Terminator X 24X/1X EV6 LS1/LS6 MPFI Kit

Holley 550-916 Terminator X Max LS1/LS6 MPFI Kit

Holley 550-918 Terminator X Max LS2/LS3 MPFI Kit

Holley 550-920 Terminator X Max 58X/4X EV1 LS MPFI Kit

Popular Parts and Makes