MG Engine Control Modules

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$188 Off

Holley |

#4255501422

Holley 550-1422 Terminator X Max, 2007-12 Gen III Hemi, EV1

Ignition Type:

Gen III Hemi Coil-on-Plug

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

Touchscreen Handheld

$2,399.95

/kit

$2,587.95

$269 Off

Holley |

#4255501508

Holley 550-1508 Terminator X Max, 11-12 Coyote Ti-VCT, EV6, DBW

Ignition Type:

Ford Coyote

Injector Connector:

USCAR (EV6)

Tuner Style:

Touchscreen Handheld

$3,499.95

/kit

$3,768.95

$269 Off

Holley |

#4255501510

Holley 550-1510 Terminator X Max, 13-15 Coyote Ti-VCT, EV6, DBW

Ignition Type:

Ford Coyote

Injector Connector:

USCAR (EV6)

Tuner Style:

Touchscreen Handheld

$3,499.95

/kit

$3,768.95

$269 Off

Holley |

#4255501512

Holley 550-1512 Terminator X Max, 15.5-17 Coyote Ti-VCT, EV6, DBW

Ignition Type:

Ford Coyote

Injector Connector:

USCAR (EV6)

Tuner Style:

Touchscreen Handheld

$3,499.95

/kit

$3,768.95

$187 Off

Holley |

#4255501600

Holley 550-1600 Terminator X GM Gen V Early LT Kit

Ignition Type:

Factory GM

Tuner Style:

Touchscreen Handheld

Throttle Style:

Cable Driven

$2,749.95

/kit

$2,936.95

Control Arm Upgrade

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

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!

Lower Control Arm Upgrade

Have a 1970-1994 GM A- or X-body in need of some new lower control arms? Take a look at what Speedway Motors' employee Steve L. has to say about our lower control arms!

Engine Cylinder Numbers

Engine Building Tool Guide

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

Leak Down Check on a Micro Sprint Engine

It is most certainly an important procedure and should be part of a weekly maintenance routine.

Crate Engine Fuel System Tips

Questions about what you will need for your fuel sytstem? Click here!

How to Install Side Detent Shifter for GM TH200, TH250, TH350, and TH400

Learn how to install a side detent shifter in a 1969 Chevy C10.

GM Steering Column Compatibility, Interchange & Repair Guide

Learn more about GM steering column identification, GM steering column lengths, and GM steering column compatibility.

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.

$138 Off

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

$1,999.95

/each

$2,137.95

$138 Off

Holley |

#425550918

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

Ignition Type:

Factory GM

Injector Connector:

USCAR (EV6)

Tuner Style:

Touchscreen Handheld

$1,999.95

/each

$2,137.95

$138 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

$1,999.95

/kit

$2,137.95

$163 Off

Holley |

#425550927

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

Ignition Type:

Factory GM

Injector Connector:

Multec 2

Tuner Style:

Touchscreen Handheld

$2,199.95

/each

$2,362.95

$138 Off

Holley |

#425550929

Holley 550-929 Terminator X Max LS1/LS6 MPFI Kit

Ignition Type:

Factory GM

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

Touchscreen Handheld

$1,999.95

/each

$2,137.95

$138 Off

Holley |

#425550933

Holley 550-933 Terminator X Max 58X/4X EV1 LS MPFI Kit, DBW

Ignition Type:

Factory GM

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

Touchscreen Handheld

$1,999.95

/kit

$2,137.95

-5%

Holley |

#425550936

Holley 550-936 Terminator X Universal MPFI Kit

Ignition Type:

Universal

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

Touchscreen Handheld

$1,599.95

/kit

$1,687.95

$138 Off

Holley |

#425550942

Holley 550-942 Terminator X Max Universal MPFI Kit

Ignition Type:

Universal

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

Touchscreen Handheld

$1,999.95

/kit

$2,137.95

$187 Off

Holley |

#4255501601

Holley 550-1601 Terminator X GM Gen V Late LT Kit

Ignition Type:

Factory GM

Tuner Style:

Touchscreen Handheld

Throttle Style:

Cable Driven

$2,749.95

/kit

$2,936.95

$244 Off

Holley |

#4255501610

Holley 550-1610 Terminator X Max GM Early LT, Trans Control

Ignition Type:

Factory GM

Tuner Style:

Touchscreen Handheld

Throttle Style:

Cable Driven

$3,299.95

/kit

$3,543.95

$244 Off

Holley |

#4255501611

Holley 550-1611 Terminator X Max GM Late LT, Trans Control

Ignition Type:

Factory GM

Tuner Style:

Touchscreen Handheld

Throttle Style:

Cable Driven

$3,299.95

/kit

$3,543.95

$244 Off

Holley |

#4255501621

Holley 550-1621 Terminator X Max GM Late LT, Drive-by-Wire

Ignition Type:

Factory GM

Tuner Style:

Touchscreen Handheld

Throttle Style:

Drive-By-Wire

$3,299.95

/kit

$3,543.95

$138 Off

Holley |

#425550950

Holley 550-950 Terminator X Max Universal MPFI Kit

Ignition Type:

Universal

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

Touchscreen Handheld

$1,999.95

/kit

$2,137.95

$163 Off

Holley |

#425550959

Holley 550-959 Terminator X Max Universal MPFI Kit

Ignition Type:

Universal

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

Touchscreen Handheld

$2,199.95

/kit

$2,362.95

$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

$244 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

$3,299.95

/kit

$3,543.95

$275 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

$3,549.95

/kit

$3,824.95

$275 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

$3,549.95

/kit

$3,824.95

$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

$125 Off

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

$1,449.95

/each

$1,574.95

$132 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

$1,949.95

/kit

$2,081.95

$157 Off

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

$2,149.95

/each

$2,306.95

$157 Off

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

$2,149.95

/each

$2,306.95

FiTech |

#521300021

FiTech 30002-1 Replacement ECU for Fitech 30002 Handheld Go EFI 4

GTIN Code:

812061031189

$271.00

/each

FiTech |

#521300051

FiTech 30005-1 Replacement ECU for Fitech 30005 Easy Street EFI

GTIN Code:

812061031219

$271.00

/each

FiTech |

#521300081

FiTech 30008-1 Replacement ECU for Fitech 30008 Mean Street

GTIN Code:

812061031226

$271.00

/each

FiTech |

#521300141

FiTech 30014-1 Replacement ECU for Fitech 30014 Go Port

GTIN Code:

812061031240

$271.00

/each

FiTech |

#521300121

FiTech 30012-1 Replacement ECU for Fitech 30012 Go EFI 8

GTIN Code:

812061031233

$271.00

/each

FiTech |

#521238301

FiTech 62013-38301 New Style Handheld For FiTech 38301 Ultra Ram

GTIN Code:

812061032919

$167.00

/each

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MG Engine Control Modules

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Products

Holley 550-1422 Terminator X Max, 2007-12 Gen III Hemi, EV1

Holley 550-1508 Terminator X Max, 11-12 Coyote Ti-VCT, EV6, DBW

Holley 550-1510 Terminator X Max, 13-15 Coyote Ti-VCT, EV6, DBW

Holley 550-1512 Terminator X Max, 15.5-17 Coyote Ti-VCT, EV6, DBW

Holley 550-1600 Terminator X GM Gen V Early LT Kit

Related Articles

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

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

Holley 550-929 Terminator X Max LS1/LS6 MPFI Kit

Holley 550-933 Terminator X Max 58X/4X EV1 LS MPFI Kit, DBW

Holley 550-936 Terminator X Universal MPFI Kit

Holley 550-942 Terminator X Max Universal MPFI Kit

Holley 550-1601 Terminator X GM Gen V Late LT Kit

Holley 550-1610 Terminator X Max GM Early LT, Trans Control

Holley 550-1611 Terminator X Max GM Late LT, Trans Control

Holley 550-1621 Terminator X Max GM Late LT, Drive-by-Wire

Holley 550-950 Terminator X Max Universal MPFI Kit

Holley 550-959 Terminator X Max Universal MPFI Kit

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 550-904T 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

FiTech 30002-1 Replacement ECU for Fitech 30002 Handheld Go EFI 4

FiTech 30005-1 Replacement ECU for Fitech 30005 Easy Street EFI

FiTech 30008-1 Replacement ECU for Fitech 30008 Mean Street

FiTech 30014-1 Replacement ECU for Fitech 30014 Go Port

FiTech 30012-1 Replacement ECU for Fitech 30012 Go EFI 8

FiTech 62013-38301 New Style Handheld For FiTech 38301 Ultra Ram

Popular Makes and Parts