G-Body Engine Control Modules

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125 products

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Products

FiTech |

#521300031

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

(1)

$271.00

/each

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

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

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

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

New Product Spotlight - 4th Quarter 2025 - Parts to Fuel Your Passion

Speedway Motors, a manufacturer, retailer and distributor of high-quality automotive parts and racing products, announced today new products now available on their website.

Replacing a G-Body 7.5" Bolt Rear End

Learn about the power behind the G-body platform and the steps to upgrade a 7.5" bolt rear end to a 8.5" to withstand high horsepower. See how to change the differential fluid and install new gaskets.

GM Gen V Engine Guide | LT & EcoTec3 Engine Specs Guide

Inside GM’s Gen V LT engine family: history, tech, and performance of each LT engine option available.

G-Comp™ Buyer's Guide

Here's a handy guide to familiarize you with our G-Comp line of performance suspension systems.

G-Comp Front Suspension for 70-81 Camaro

Step by step guide to the installation of the G-Comp front suspension.

G-Comp Front Suspension for 67-69 Camaro

Step by Step instructions for the G-Comp front suspension install for a 67-69 Chevy Camaro.

G-Comp Front Suspension for 62-67 Nova

Step by Step guide to installing a G-Comp front suspension on your Nova.

Project Chevelle: Spindles and Control Arms Tech Article

Project Chevelle undergoes front suspension upgrades to minimize feeling every dip and bump in the road. Josh S. walks through the install and quick overview of the tubular control arms and G comp spindles.

Twin Turbo LS-Powered G-Comp Cobra

This Cobra features a G-Comp suspension and an unlikely engine choice, but its mission is the same as those storied Cobras of old. It was built to win races.

What is Autocross | Can I Autocross a Muscle Car?

Prepare your classic muscle car for autocross competition by exploring the best options, beginner tips, and essential suspension upgrades.

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

$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 |

#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

FiTech |

#521700501

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

Sold in Quantity:

Each

Drive-By-Wire Capable:

$567.00

/each

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 |

#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

$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

$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

Rebate

Holley |

#425550936

Holley 550-936 Terminator X Universal MPFI Kit

Ignition Type:

Universal

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

Touchscreen Handheld

$1,358.95

/kit

$1,599.95

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

$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

$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

$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

Rebate

Holley |

#425550942

Holley 550-942 Terminator X Max Universal MPFI Kit

Ignition Type:

Universal

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

Touchscreen Handheld

$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

Rebate

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

$1,868.95

/each

$2,199.95

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

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

Rebate

Holley |

#4255501316

Holley 550-1316 Terminator X Max, Ford Modular 2V, EV1 Injectors

Ignition Type:

Ford 2V Mod Stock Coils

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

Touchscreen Handheld

$2,038.95

/kit

$2,399.95

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

$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

Rebate

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

$2,421.95

/each

$2,849.95

Rebate

Holley |

#425550959

Holley 550-959 Terminator X Max Universal MPFI Kit

Ignition Type:

Universal

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

Touchscreen Handheld

$1,868.95

/kit

$2,199.95

Rebate

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

$2,336.95

/each

$2,749.95

Rebate

Holley |

#425550950

Holley 550-950 Terminator X Max Universal MPFI Kit

Ignition Type:

Universal

Injector Connector:

Jetronic / Minitimer (EV1)

Tuner Style:

Touchscreen Handheld

$1,698.95

/kit

$1,999.95

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

$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

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

Rebate

Holley |

#425550931T

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

Ignition Type:

Factory GM

Injector Connector:

USCAR (EV6)

Tuner Style:

USB/CAN Tuning Cable

$1,656.95

/each

$1,949.95

$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

Showing 1 - 36 of 125 results

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G-Body Engine Control Modules

Ignition Type

Brand

Transmission Family

Availability

Discounts

Engine Family

Price

Customer Rating

Products

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

Holley 550-905 Terminator X LS2/LS3 MPFI Kit

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

Holley 550-904 Terminator X Early Truck LS MPFI Kit

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

Related Articles

Holley 550-903 Terminator X LS1/LS6 MPFI Kit

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

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

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

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

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

Holley 550-937 Terminator X Ford MPFI Kit

Holley 554-114 Dominator EFI ECU

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

Holley 550-936 Terminator X Universal MPFI Kit

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

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

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

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

Holley 550-942 Terminator X Max Universal MPFI Kit

BluePrint BPPLS530 LS Engine Controller Kit

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

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

FAST 303000 XFI Sportsman EFI Multi-Port Engine Control System

Holley 550-1316 Terminator X Max, Ford Modular 2V, EV1 Injectors

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

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

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

Holley 550-959 Terminator X Max Universal MPFI Kit

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

Holley 550-950 Terminator X Max Universal MPFI Kit

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

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

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

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

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

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