GM LS Atomic EFI Installation Kit


GM LS Atomic EFI Installation Kit


Availability: Available on backorder


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GM LS Atomic EFI Installation Kit

The GM LS-based engine has been embraced by hot rodders, muscle car fans and racers alike.  However, trying to retrofit the factory EFI system into a street rod or muscle car creates a number of challenges from wiring to programming. Intimidating electronics and bulky wiring harnesses can quickly clutter the engine compartment and hurt the aesthetics of any hot rod. The massive factory ECU is not only a hassle to mount, but the sheer amount of wiring that goes along with it is simply overwhelming. MSD’s Atomic LS EFI systems are designed to eliminate the intimidation and clutter when installing aftermarket EFI on an LS engine.


  • Integrated Fuel Rails and ECU
  • Wiredless technology reduces wire
  • Self-Tuning
  • No Laptop


1999-2007 Chevrolet 4.8, 5.3, 6.0 LS Engine

1955 – 1995 Chevrolet Corvette
1955 – 1995 Chevrolet Camaro


By integrating the ECU onto the fuel rails MSD has eliminated the bulky ECU and tangled mess of a wiring harness. The self-tuning technology of the Atomic system allows the average do-it-yourself hot rodder to easily wrap up an LS engine transplant. Initial setup is a breeze with the supplied handheld monitor and by simply answering a few car guy questions during the initial setup, your Atomic LS’d project will be ready to drive.



1 review for GM LS Atomic EFI Installation Kit

  1. 5 out of 5

    Baker Russell

    I’m glad I found TD Motion. They have quality parts at great prices with quick delivery. I’m happy to recommend them.

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