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Link-G4X AtomX ECU

Link-G4X AtomX ECU

$1,000.00
$1,000.00
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AtomX


Small, but mighty! 

The AtomX can control up to 2 rotors or 4 cylinders with sequential injection and direct spark. Or, it can be used for up to eight cylinders using batch fire. Now featuring Knock Control.

This makes it ideal for naturally aspirated engines that just need a re-tune and don't need all the extra sensors and features that come with our higher level ECUs. 

The Link G4X AtomX ECU may be our entry-level ECU but don't let its size fool you. The AtomX has expanded data logging and uses the same microcontroller as the entire G4X range! The processing unit is more responsive and has higher bandwidth than its G4+ Atom II predecessor. 

G4X features 512 megabytes of logging at 32bit using up to 250 channels, each limited to up to 1kHz per channel (by the Operating System), with a maximum of 100 kSamples/sec.

G4X features 8 x faster communications speed than G4+ ECUs, allowing you to download logs 8 x faster and pushes all the logging quickly up to a new and improved PCLink – available for download below in the features tab. 

The AtomX is an automotive control unit. 

Requires "A" loom. 

The AtomX is ideal for:

 

  • 1-12 Cylinder Distributed
  • 2-8 Cylinder Wasted Spark
  • 1-4 Cylinder Direct Spark
  • Odd Fire Engines
  • 2-Stroke Engines
  • Configurable Firing Order
  • Configurable TDC Points (for odd fire)  
Link-G4X AtomX ECU

$1,000.00

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Does it come with a warranty?

Every Link ECU product is engineered to the highest standards and backed by our industry-leading Lifetime Warranty. This means your purchase is protected for as long as you own it — no time limits, no hidden clauses. We stand behind the quality, reliability, and performance of our products, so you can tune and drive with complete confidence. If a covered issue ever arises, we’ll make it right — that’s our promise for life.

What happens if I don't like it?

Our dedicated support team is here for you 24/7 to answer questions, troubleshoot issues, and make sure you get the most out of your purchase. If you ever feel a product isn’t right for you, we offer hassle-free returns at any time — no complicated policies, just straightforward, customer-first service.

How fast is shipping?

We ship anywhere in the U.S. with fast, reliable 2-day delivery — so you can get the performance parts you need without the wait. No matter where you are, your order is packed with care and on its way within 48 hours.

What's the returns policy?

We stand behind every product we sell. If for any reason you’re not completely satisfied, you can return your purchase at any time — no time limits, no hassle. Our 24/7 customer service team is here to answer questions, guide you through troubleshooting, or help you start a return whenever you need. Combined with our industry-leading Lifetime Warranty, you can shop with complete confidence knowing you’re protected before, during, and long after your purchase

Don't take our word for it...

  • Review

    I was struggling to get my ATOMX properly tuned and reached out to Link support. They walked me through every step over email and even gave me extra tips for my setup.

    Austin, Texas

  • Review

    Spent days hunting for a special boost control module for my turbo setup. Link had exactly what I needed, plus detailed specs!

    London, England

  • Review

    Installed the Link ECU and the car feels way more responsive. Had a small sensor setup issue at first, but once fixed it’s been solid and performs exactly as expected

    New York – Albany

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